You run around and pet buns. It's an absolute joy.
Playing this game in openSUSE, I had to do a bit of command line tomfoolery. I was getting an error about libcurl-gnutls.so when trying to run from the command line.
The solution was to run this:
sudo ln -s /usr/lib64/libcurl.so.4 /usr/lib64/libcurl-gnutls.so.4
The game booted right up and played like a dream afterwards.
EDIT: It looks like the Studio Nevermore has found out about the problems regarding the newest Linux build of the game. I just wanted to report that the Windows version works very well with Proton 4.11, but hopefully the native Linux build will work soon!