The default engine gets the microphone and audio fixes the Wine 11 engines had since 0.10.27, and new Wine 11 engines fix Steam on Macs with Intel Homebrew.
Environments on the default engine move to Wine 10 r30 by themselves, an 8 KB download. Microphones no longer break up in voice chat. Wine dropped a small piece of the microphone's sound every 10 ms, and now it keeps every frame (#350, #601). Game sound keeps up on a busy Mac, since Wine's audio clock now runs in real time (#444). And games follow the Mac's output when you switch it, to AirPods for example, instead of playing to the old one until they restart (#460, thanks to nikiomori). Environments on the D3DMetal 4 line get the same as r31 (#727).
New Wine 11 engines r32 and r33, which are r30 and r31 with a rebuilt Wine. Steam no longer crashes on Wine 11 on Macs that have Intel Homebrew's GLib or GStreamer, which the engine loaded beside its own (#698). Steam's client service no longer stops when it sets its GPU priority, which could freeze a game when its Steam overlay opened (#699). Thanks to danil1932 and ghadgkdbfvkdab for the reports and logs. Wine 11 environments never move by themselves, so pick r33, or r32 for D3DMetal 4 on macOS 27, in the environment's Full page, Advanced, Engine (#710).
Uninstalling a GOG game removes only the files its install put there and leaves what you added beside it, a patch, a mod or the Mac build a game like Fallout CE wants in its folder, as Steam does. Games installed before this version have no list of their files yet, so they still go whole (#691, suggested by udance4ever in #652).
Epic can be disconnected. The Epic card in Add games opens its sign in window again, with Disconnect Epic, so a session Epic stopped accepting no longer leaves you stuck (#713, for #708).
Steam demos stay in the library like games, also when the drive they're on is unplugged, and a demo of a game you own no longer shows beside it (#714, #726, thanks to udance4ever for #432).
Play time is counted right for games that restart themselves, such as Civilization IV's tutorial, where the session used to end within seconds (#715). A game handed over to the EA app is still undercounted.
A play report says when Enable DLSS (MetalFX) was on (#692).
The highball command line's play --wait returns at once for a game that isn't installed, instead of waiting ten minutes (#726).