Cashu is cool. You can do neat things with it that isn't possible with Monero, but custodial privacy can't be a replacement for non-custodial privacy. Even Calle the creator has said this.

Not only that, but because users are split up between mints, and even fractured within each mint itself via denominated token pools (1,2,4,8,16,32,etc) it also has a tiny anonymity set in comparison to Monero

Here are a few places to spend Monero if you are genuinely looking:
https://paste.sethforprivacy.com/?d7fded8661f815e0#AwcKVyVh7FXc6KJgZhqKn2f7g3iUZr7adqF9kEcSwqaV