One of the users in the Steam discussion thread found a workaround to make the game work on Linux. You can find it here and below.

::: spoiler Workaround

1. Download the 64-bit copy of iphlpapi.dll from https://www.dll-files.com/iphlpapi.dll.html
2. Unpack downloaded dll file to /.steam/steam/steamapps/compatdata/3887700/pfx/drive_c/windows/system32.
3. Add WINEDLLOVERRIDES="iphlpapi=n" %command% to the game's launch arguments in Steam.
4. Change compatibility version to Proton 7.0. :::

Resource download is super slow at the moment so I can't say how well the game itself runs but it's possible to launch at least. I'll update this post once I'm in game proper.

Edit: Game works great with the workaround - smooth, snappy and without any additional technical issues so far.