This would be terrible, because any website could potentially make you a seeder for „illegal“ content while normally browsing the web without a VPN. Meaning, your real IP address may accidentally be recorded by some lawerers and you’ll get a fine for whatever you accidentally shared (very dangerous, depending on country).
There are already solutions for webtorrents, but at least these scripts can be blocked.
Use Bottles with the Sandbox option enabled (and sound enabled). So, native performance but without access to files outside the Wine prefix (virtual Windows folder where the game is installed) and without network access. This way, you don’t have to worry about games phoning home, containing a crypto miner or ransomware.
Also, forget about FitGirl repacks on Linux, most don’t unpack correctly.