Hello @kubast2, I read this as steam failing to download all the bootstrap files, then falling over an empty or corrupt archive. You can try steam --reset or move/remove ~/.steam and try again.
@kisak-valve
I see, I have just installed steam provided package from steampowered.com
It tried to remove .steam folders etc., but failed because it returned in cmdline
"rm: /home/user/.steam is a folder"
etc. on 3-4 folders
So I have deleted those folders myself, and it have fixed the issue.
Closing per the last comment.
https://askubuntu.com/a/1018230/457417 seemed to help for me:
mkdir "/home/$USER/.steam/ubuntu12_32/steam-runtime"
Nothing extracted yet.
Your system information
Please describe your issue in as much detail as possible:
tar: To nie wygląda jak archiwum tar
xz: (stdin): Nieznany format pliku
tar: Child returned status 1
tar: Error is not recoverable: exiting now
find: ‘/home/j/.steam/ubuntu12_32/steam-runtime’: Nie ma takiego pliku ani katalogu
Can't launch steam
Steps for reproducing this issue: