I don't use Sid, but testing, it's working almost flawlessly. Each release (once every 2 years, I guess), I take few hours to check everything work; remove shader cache, etc.
My setup, right now (dirty, for authenticity) :
$ cat /etc/apt/sources.list
deb https://deb.debian.org/debian/ testing main contrib non-free non-free-firmware
deb-src https://deb.debian.org/debian/ testing main contrib non-free non-free-firmware
deb https://security.debian.org/debian-security/ testing-security main contrib non-free non-free-firmware
deb-src https://security.debian.org/debian-security/ testing-security main contrib non-free non-free-firmware
# bullseye-updates, to get updates before a point release is made;
# see https://www.debian.org/doc/manuals/debian-reference/ch02.en.html#_updates_and_backports
deb https://deb.debian.org/debian/ testing-updates main contrib non-free non-free-firmware
deb-src https://deb.debian.org/debian/ testing-updates main contrib non-free non-free-firmware
# add by me
deb https://deb.debian.org/debian/ testing-backports main contrib non-free non-free-firmware
deb-src https://deb.debian.org/debian/ testing-backports main contrib non-free non-free-firmware
$ cat /etc/apt/sources.list.d/*
deb http://download.opensuse.org/repositories/graphics:/darktable/Debian_Testing/ /
deb [signed-by=/etc/apt/keyrings/lutris.gpg] https://download.opensuse.org/repositories/home:/strycore/Debian_Testing/ ./
# Uncomment these lines to try the beta version of the Steam launcher
#deb [arch=amd64,i386 signed-by=/usr/share/keyrings/steam.gpg] https://repo.steampowered.com/steam/ beta steam
#deb-src [arch=amd64,i386 signed-by=/usr/share/keyrings/steam.gpg] https://repo.steampowered.com/steam/ beta steam
deb [arch=amd64,i386] https://repo.steampowered.com/steam/ stable steam
deb-src [arch=amd64,i386] https://repo.steampowered.com/steam/ stable steam
# Uncomment these lines to try the beta version of the Steam launcher
# deb [arch=amd64,i386] https://repo.steampowered.com/steam/ beta steam
# deb-src [arch=amd64,i386] https://repo.steampowered.com/steam/ beta steam
deb [arch=amd64,i386 signed-by=/usr/share/keyrings/steam.gpg] https://repo.steampowered.com/steam/ stable steam
deb-src [arch=amd64,i386 signed-by=/usr/share/keyrings/steam.gpg] https://repo.steampowered.com/steam/ stable steam
deb [ signed-by=/usr/share/keyrings/vscodium-archive-keyring.gpg ] https://download.vscodium.com/debs/ vscodium main
I play a lot, we just played Grounded with friend yesterday.
Hope this helps.