Flags that I have enabled in Edge, in case they could be helpful or related
This option enables TLS 1.3 Early Data, allowing GET requests to be sent during the handshake when resuming a connection to a compatible TLS 1.3 server. – Mac, Windows
#enable-tls13-early-dataThis option enables a post-quantum (i.e. resistent to quantum computers) key exchange algorithm in TLS (CECPQ2). – Mac, Windows
#post-quantum-cecpq2Display entity suggestions using images and an enhanced layout; showing more context and descriptive text about the entity. – Mac, Windows
#omnibox-rich-entity-suggestionsEnable suggestions for switching to open tabs within the Omnibox. – Mac, Windows
#omnibox-tab-switch-suggestionsEnable omnibox Pedal suggestions to accelerate actions within Microsoft Edge by detecting user intent and offering direct access to the end goal. – Mac, Windows
#omnibox-pedal-suggestionsChanges the maximum number of autocomplete matches displayed in the Omnibox UI. – Mac, Windows
#omnibox-ui-max-autocomplete-matchesAllows users to organize tabs into visually distinct groups, e.g. to separate tabs associated with different tasks. – Mac, Windows
#tab-groupsEnable parallel downloading to accelerate download speed. – Mac, Windows
#enable-parallel-downloadingEnables a popup containing tab information to be visible when hovering over a tab. This will replace tooltips for tabs. – Mac, Windows
#tab-hover-cardsOnly display query terms in the omnibox when viewing a search results page. – Mac, Windows
#enable-query-in-omniboxEnables pointer-based scrollbar scrolling on the compositor thread instead of the main thread – Mac, Windows
#compositor-threaded-scrollbar-scrollingTurn this on to allow themes from external web stores to be installed in Microsoft Edge. – Mac, Windows
#edge-allow-store-extension-themesBy default, both Ctrl+E and Ctrl+K are the shortcuts for Focus Search. If enabled, Ctrl+K is assigned to Duplicate Tab. – Windows
#edge-use-alternate-duplicate-tab-shortcutIf enabled, block will appear as an option in media autoplay settings. – Mac, Windows
#edge-autoplay-user-setting-block-optionEnables the Edge Crashes UI to be rendered in React – Mac, Windows
#edge-crashes-page-reactDrops down browser frame during browser fullscreen. – Windows
#edge-enable-shy-uiEnables upcoming and experimental improvements to Tracking Prevention. – Mac, Windows
#edge-experimental-tracking-prevention-featuresEnable Grammar Tools feature in Reading View – Mac, Windows
#edge-reading-view-grammar-toolsEnable Reading Preferences in Reading View – Mac, Windows
#edge-reading-view-reading-preferencesEnables user to see selected text from web page in Immersive Reader – Mac, Windows
#edge-reading-view-for-selectionEnables ambient authentication in InPrivate mode. This flag may be overriden by policies. – Mac, Windows
#enable-ambient-authentication-in-incognitoEnables ambient authentication in Guest session. This flag may be overriden by policies. – Mac, Windows
#enable-ambient-authentication-in-guest-sessionEnables right-click UI to share the page's URL via a generated QR Code. – Mac, Windows
#sharing-qr-code-generatorEnables the Global Media Controls UI in the toolbar. – Mac, Windows
#global-media-controlsShows Cast sessions in the Global Media Controls UI. Requires #global-media-controls and #cast-media-route-provider to also be enabled. – Mac, Windows
#global-media-controls-for-castEnables Picture-in-Picture controls in the Global Media Controls UI. Requires #global-media-controls to also be enabled. – Mac, Windows
#global-media-controls-picture-in-pictureReplaces the default scroll animation with Impulse-style scroll animations. – Mac, Windows
#impulse-scroll-animationsShow security warnings for sites that use legacy TLS versions (TLS 1.0 and TLS 1.1), which are deprecated and will be removed in the future. – Mac, Windows
#show-legacy-tls-warningsCauses a 'Not Secure' chip to be shown in the omnibox if a site contains passive (aka optionally blockable) mixed content. – Mac, Windows
#passive-mixed-content-warningSet the User-Agent request header to a static string that conforms to the current User-Agent string format but only reveals desktop vs Android and if the 'mobile' flag is set – Mac, Windows
#freeze-user-agent
