Hi! You may be affected by the Steam overlay CTD on Linux.
Please refer to this post for possible workarounds https://forum.paradoxplaza.com/forum/threads/frequent-crashing-on-linux.1610423/#post-29277925
Please refer to this post for possible workarounds https://forum.paradoxplaza.com/forum/threads/frequent-crashing-on-linux.1610423/#post-29277925