Dev channel update to 84.0.522.5 is live

Since this update Edge crashes completely whenever I try to make a web app full screen on macOS

I can make the main browser window full screen, but not apps ☹️

error18:22:01.575187+0100Microsoft Edge DevAn uncaught exception was raised
error18:22:01.576147+0100Microsoft Edge DevtitlebarViewController not supported for this window style
error18:22:01.576998+0100Microsoft Edge Dev(
	0   CoreFoundation                      0x00007fff37768be7 __exceptionPreprocess + 250
	1   Microsoft Edge Framework            0x00000001119aa84c ChromeMain + 58228700
	2   libobjc.A.dylib                     0x00007fff705405bf objc_exception_throw + 48
	3   CoreFoundation                      0x00007fff37791d98 +[NSException raise:format:arguments:] + 88
	4   Foundation                          0x00007fff39e80e9d -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 191
	5   AppKit                              0x00007fff349dde08 -[NSWindow titlebarViewController] + 195
	6   AppKit                              0x00007fff349ddd2f -[NSWindow addTitlebarAccessoryViewController:] + 27
	7   Microsoft Edge Framework            0x0000000114ec0702 ChromeMain + 113893010
	8   Microsoft Edge Framework            0x0000000114ec163e ChromeMain + 113896910
	9   Microsoft Edge Framework            0x0000000114f5e61b ChromeMain + 114539947
	10  Microsoft Edge Framework            0x0000000114f5eb80 ChromeMain + 114541328
	11  Microsoft Edge Framework            0x000000010eaf132d ChromeMain + 9235133
	12  Microsoft Edge Framework            0x0000000112078388 ChromeMain + 65362712
	13  Microsoft Edge Framework            0x000000011207f7f2 ChromeMain + 65392514
	14  Microsoft Edge Framework            0x000000011207e2cc ChromeMain + 65387100
	15  Microsoft Edge Framework            0x0000000112080350 ChromeMain + 65395424
	16  Microsoft Edge Framework            0x00000001139fc544 ChromeMain + 92118228
	17  Microsoft Edge Framework            0x0000000111e9bb74 ChromeMain + 63410948
	18  Microsoft Edge Framework            0x0000000111eaf56e ChromeMain + 63491326
	19  Microsoft Edge Framework            0x0000000111eaf321 ChromeMain + 63490737
	20  Microsoft Edge Framework            0x0000000111f15371 ChromeMain + 63908609
	21  Microsoft Edge Framework            0x0000000111f0e9da ChromeMain + 63881578
	22  Microsoft Edge Framework            0x0000000111f14b41 ChromeMain + 63906513
	23  CoreFoundation                      0x00007fff376ecde2 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
	24  CoreFoundation                      0x00007fff376ecd81 __CFRunLoopDoSource0 + 103
	25  CoreFoundation                      0x00007fff376ecb9b __CFRunLoopDoSources0 + 209
	26  CoreFoundation                      0x00007fff376eb8ca __CFRunLoopRun + 927
	27  CoreFoundation                      0x00007fff376eaece CFRunLoopRunSpecific + 462
	28  HIToolbox                           0x00007fff36319abd RunCurrentEventLoopInMode + 292
	29  HIToolbox                           0x00007fff363197d5 ReceiveNextEventCommon + 584
	30  HIToolbox                           0x00007fff36319579 _BlockUntilNextEventMatchingListInModeWithFilter + 64
	31  AppKit                              0x00007fff34961829 _DPSNextEvent + 883
	32  AppKit                              0x00007fff34960070 -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 1352
	33  Microsoft Edge Framework            0x0000000111913f0f ChromeMain + 57611935
	34  Microsoft Edge Framework            0x0000000111f0e9da ChromeMain + 63881578
	35  Microsoft Edge Framework            0x0000000111913e51 ChromeMain + 57611745
	36  AppKit                              0x00007fff34951d7e -[NSApplication run] + 658
	37  Microsoft Edge Framework            0x0000000111f15d5b ChromeMain + 63911147
	38  Microsoft Edge Framework            0x0000000111f1454c ChromeMain + 63904988
	39  Microsoft Edge Framework            0x0000000111eafab2 ChromeMain + 63492674
	40  Microsoft Edge Framework            0x0000000111e7e8fe ChromeMain + 63291534
	41  Microsoft Edge Framework            0x0000000111922237 ChromeMain + 57670087
	42  Microsoft Edge Framework            0x000000010f5e76ee ChromeMain + 20729470
	43  Microsoft Edge Framework            0x000000010f5e9d22 ChromeMain + 20739250
	44  Microsoft Edge Framework            0x000000010f5e516b ChromeMain + 20719867
	45  Microsoft Edge Framework            0x0000000111715677 ChromeMain + 55520775
	46  Microsoft Edge Framework            0x00000001117163cf ChromeMain + 55524191
	47  Microsoft Edge Framework            0x000000011171613f ChromeMain + 55523535
	48  Microsoft Edge Framework            0x00000001144fd395 ChromeMain + 103656229
	49  Microsoft Edge Framework            0x0000000111715605 ChromeMain + 55520661
	50  Microsoft Edge Framework            0x000000010e22291d ChromeMain + 173
	51  Microsoft Edge Dev                  0x000000010b1eb0dd main + 285
	52  libdyld.dylib                       0x00007fff716e7cc9 start + 1
	53  ???                                 0x0000000000000001 0x0 + 1
)
default18:22:01.600290+0100msedge_crashpad_handler[0529/182201.600163:WARNING:process_memory_mac.cc(93)] mach_vm_read(0x7ffee4a15000, 0x2000): (os/kern) invalid address (1)
default	18:22:01.848367+0100	msedge_crashpad_handler	[0529/182201.848303:WARNING:crash_report_exception_handler.cc(258)] UniversalExceptionRaise: (os/kern) failure (5)