Vesktop.

as far as I see freetube is just written in html, css and Javascript, then all of that thrown into an Electron app. you can run these elements without Electron in any browser, it just won’t have access to as many device features as the app does.

I’ve built a web version here from the source just to try it out. it’s somewhat buggy but it does work

is, but it’s just a webview

https://apt.izzysoft.de/fdroid/index/apk/io.freetubeapp.freetube

Playnite. Combines all games from all connected launchers into one and configurable/themeable to your hearts desire