Internet Explorer will go out of support on June 15 2022 (it's been a long ride). I believe the Windows Forms WebBrowser class still uses Trident, the IE rendering engine. Of course there are still apps out there using WebBrowser (I use one every day) with no or minimal maintenance energy. Assuming Trident will still work, does the EOL mean any negative implications for apps that use WebBrowser?
I think updating to WebView2 would be too much of a leap for many such apps.