"privacy" is a spectrum. Just like security.
It's not binary and full of nuances / trade-offs.
I'm afraid you'll have to decide for yourself after DYOR, because we don't necessarily have the same appreciation of all that.
My own research led me to the conclusion that Whirlpool protocol is sound, Samourai Wallet is good, and Wasabi is garbage, all things considered.
Samourai may be spooks. Probably not but IDK, and IDC. Their software & protocol are solid and opensource.
Listen to an interview of Samourai Wallet (on Stephan Livera podcast or elsewhere). And an interview of Nopara (Citadel Dispatch ep.15 🤯)
Then decide for yourself who's serious and who's a total clown. Shouldn't be too hard :)