FreeTube is a privacy-focused YouTube client, based on Electron. It has pretty good mobile & touchscreen support.
$ flatpak install flathub io.freetubeapp.FreeTube
Wayland support (under Phosh)
FreeTube has at the moment no Wayland support and crashes on user interfaces using Wayland with
cannot open display. On Phosh, you can force FreeTube to run under XWayland by unsetting the environment variable
GDK_BACKEND or setting it to
x11. Make these changes persistent through following command:
$ flatpak override --user --env=GDK_BACKEND=x11 io.freetubeapp.FreeTube
Be aware that there are some oddities with XWayland under Phosh.