PBKDF2 vs Argon2 - which is better?

I didn’t notice any difference at all. Have mine set for Argon2id, 3 KDF iterations, 64 KDF memory, and 4 KDF parellelism. I think this is the default.

Use it on iPhone 15 Pro, MacBook Air M1, Mac Studio M1 Max, iPad Pro (fairly old one, one of the first introduced), and Windows 11 machine (Dell Inspiron 7700). All computers use it with Chrome and MBA/Mac Studio also have the standalone app.