Edge Dev Version 149.0.3984.0 (Official build) dev (64-bit) Update

Got this update on Edge Dev today, immediately thereafter its locked up my pc after it applied and i went to open a new tab (had to ctrl+alt+del and end task it)

its something specific here as edge stable and beta still work.

unsure what's changed or if others have the same issue?
diving into logs in just a sec...