I had no idea that you could just drop an msi installer right in steam. This worked for me, and was much easier to install pokemon tcg live in 05-2024 on ubuntu 22-04. I added the msi to steam from my downloads, hit start, failed right away like he said it would. changed compatability to proton experimental, and it opened right up.
- Download the official installer from pokemon tcg
- Add non steam game
- click show all file types
- navigate to downloaded msi
- click gear icon > compatability > proton experimental
- click play
- profit