https://bbs.archlinux.org/viewtopic.php?id=282586 op here says that 1.8.2-2 runs fine in tf2
but if you really want the older one, here you go: https://archive.archlinux.org/packages/l/lib32-libx11/lib32-libx11-1.8.1-1-x86_64.pkg.tar.zst

ps if you're downgrading, open up /etc/pacman.conf and add that lib32-libx11 to IgnorePkg line

some workarounds from this thread
linux:

chmod -x $HOME/.local/share/Steam/ubuntu12_64/steamwebhelper

windows:

removing/renaming steamwebhelper.exe and starting the client with -noverifyfiles.

after quickly testing on linux (didnt test windows), games run fine, but you need to launch them through minimal mode and you won't be able to chat with people (and you will be offline), because that is handled by the now disabled steamwebhelper. also updates might revert these changes, but that shall be seen

hello, unfortunately the younger hedgie (ozzy) passed away just 2 hours ago. he got diagnosed with water on his heart and at the same time dehydration, enlarged kidney and infection in his urinary tract. hedgehogs hide their illnesses (and are quite prone to them) very well, so you usually find out when it's too late. we did so on saturday, but couldn't find an emergency at the weekend that could treat hedgehogs, so he got some medicaments on monday and made it all the way to this moment.

https://files.catbox.moe/r8r5at.jpg

sleep well

https://files.catbox.moe/66roe1.png

https://files.catbox.moe/e0yt6k.png

https://youtu.be/vIfoRgXpmWI?t=174

@op some of the clips should've been cut, especially the sniper ones and the pyro one

https://files.catbox.moe/3nm0kq.png

https://clips.twitch.tv/AltruisticTiredSwallowOSkomodo-dBf_wphrMc9ubFzH
https://www.twitch.tv/b4nny/clip/HelplessFrigidOtterNotLikeThis-AmPruKoYE5xf4Vht?filter=clips&range=7d&sort=time

probably yes, but i remember the regedit way worked for me
what's your driver version?

https://i.imgur.com/tlzdhQm.png

that software is obsolete, do it this way https://www.teamfortress.tv/26324/lod-tweaks-for-amd#6

https://www.youtube.com/watch?v=O0Pdy1_iRqA

you will never be forgotten, friend. rest in peace. o7

https://www.screamblastrepeat.com/wp-content/uploads/2021/03/Brand-of-Sacrifice-Lifeblood.jpg

https://files.catbox.moe/a1pjle.gif

https://files.catbox.moe/q0lyor.jpg

there was also this weird hedgehog

https://files.catbox.moe/ol52e2.jpg