AV1 Screen Sharing
The desktop app can encode your screen share as AV1 when your GPU knows how. Same bitrate, sharper picture, and it shows most on text and menus.
The screen picker has a codec setting: Auto, AV1 or H264. Auto is right for most people.
There's also a 6 Mbps option in the bitrate list now, for connections that couldn't hold 8.