Playtime is not registered or displayed when starting games on Linux

Description of problem after 3.6.0 update

• Installation type:.deb

• Distribution: Linux Mint 22.1

Problem:
After updating to version 3.6.0, Hydra is not updating the game time nor does it signal when a game is started - in other words, it doesn't indicate that the game is running.

Initially, I suspected that the problem might be related to the custom theme I use, so I disabled it and restarted the launcher, but the problem persisted.

I confirmed that the .exe path is correct and that the game starts normally. I tested it with all the games in my library, and the behavior is the same for all of them.