dreamsyntax | Steam Downloads Slow On Linux?! FIX IT @dreamsyntax | Uploaded September 2023 | Updated October 2024, 42 minutes ago.
@nClientDownloadEnableHTTP2PlatformLinux 0

Try just the one line above first, but if no improvement use both
@nClientDownloadEnableHTTP2PlatformLinux 0
@fDownloadRateImprovementToAddAnotherConnection 1.0

Native Installs:
~/.steam/steam/steam_dev.cfg
OR
/home/USER/.steam/steam/steam_dev.cfg

Flatpak Installs:
~/.var/app/com.valvesoftware.Steam/.steam/steam/steam_dev.cfg
- flatpak confirmation thanks to uranium4breakfast

If you are using Nobara as your chosen distro, this is already done automatically.
If you are using CachyOS as your chosen distro, this is already done automatically.

Source / Guide by Rosentti:
old.reddit.com/r/linux_gaming/comments/16e1l4h/slow_steam_downloads_try_this

#linux #linuxgaming #steam