A new stable Steam-Client 29.08.2020 has been released for Linux. It contains a lot of improvements and bug fixes:

29 August - Steam Client Update Released

A new Steam client has been released and will be automatically downloaded.

General
Added support for EA Play
Fixed acquiring free DLC from Steam store using in-game overlay web browser
Fixed bug that could cause Steam to crash at shutdown time
Fixed runaway memory usage in steamwebhelper process when a corrupt proxy auto-config script is encountered
Fixed bug that could cause Steam to hang at shutdown time
Fixed game installation failing in certain cases when creating symbolic links
Fixed Steam client account button formatting incorrectly when Steam Wallet balance changes
Fixed a possible crash in Steam Overlay when taking screenshots in DOOM: Eternal
Fixed Download Region being forced to “Argentina” in certain circumstances
Fixed Steam client window initially showing as translucent rectangle when opened on a secondary display set to a different DPI value than the primary display
Improved updating game content when disk space is low and another Steam library folder on a different disk is available
Improved handling of game launches from executables or other launchers. This fixes several issues including the game not receiving the Big Picture version of the overlay even if Big Picture is active

Library
Improved sorting for games with non-English titles
Added the ability to dismiss a Play Next library suggestion
Added Steam Points Shop link on supported games
Added ability to grant Community Awards to Activity and Community feed content
Stop displaying entries in a game's activity feed for friends that have been unfriended or blocked
Games with manuals will now include a link to the manual in the Additional Content section of their game details page

Soundtracks
Fixed an error where some tracks with localized Japanese names would show the international name instead of the localized name when running in Japanese
Fixed errors with the display format and ordering of tracks with metadata when using the built-in music player
Improved support for track, album, and artist metadata extraction from all supported audio formats

Steam Input
Fixed an issue where Switch Controllers could lock up in games that send rumble off commands each frame
Added an implementation of Jibb Smart’s Flick Stick. To use bind the right joystick to Flick Stick and the Gyro to Mouse.
Added Flick Stick template configurations for PS4 and Nintendo Switch controllers
Added support for using Flick Stick and Mouse Joystick modes with Steam Input API games

Linux
Fixed "Clear Download Cache" action having no effect
Fixed a regression with transparent visual selection for SteamOS overlays and on-screen keyboard causing invalid rendering on NVIDIA configurations
Fixed “STOP” button in the Library having no effect for non-Steamworks titles
Fixed localization placeholder string appearing on the game launch dialog during Vulkan shader processing
Fixed a bug where Vulkan shader processing could sometimes get stuck
Reduced Vulkan shader processing memory usage with the AMD radv driver
Updated fonts to fix vertical alignment
Steam runtime 0.20200720.0
pressure-vessel: bring host VDPAU and VA-API drivers into the container
pressure-vessel: Improve mechanisms for comparing runtime libraries with host
pressure-vessel: Choose a correct libgcc_s.so.1 and libxcb.so.1 for newer runtimes

Vulkan Shader Pre-Caching
Fixed processing progress indicator display on game launch
Now processes local source pipeline database on driver update

SteamVR
Added check to automatically set SteamVR as the default OpenXR runtime if it is installed and nothing else is already set as the OpenXR runtime.
Added check to automatically enable access to SteamVR from app containers (such as Chrome sandboxed processes and UWP apps.)

Steamworks SDK
Removed sending duplicate lobby game data to the Steam backend for newer Steamworks titles