If there is any other wallet option we can use that is fully open source with coinjoin I would like to hear more about it.
Only option I know for privacy other than mentioned above is mercurywallet.com, but this is using Bitcoin Layer 2 solution.
Good question. I'm not sure whether JoinMarket is completely decentralized / P2P.
At the very least, I'd use Samourai's coordinator through Sparrow wallet. Of course, they could censor transactions just as well, or spy on users, but the fact is that they haven't declared any intention of doing anything like that.
Sparrow also lets me have coin control and other very detailed, advanced features that Wasabi (especially Wasabi 2.0), as well as Trezor Suite, clearly lack.