I recently used Liquid instead of samouri and sparrow. The reasons why is the trust involved with Liquid was easier to discern than potential hot wallets or what was happening with the joins. I might not understand the joins enough but yeah. You're saying it's a concern.
Sparrow was what looked the most legit but my feeling was it's a hot wallet, thus = risk.
Note that if you use Liquid to anonymize your Bitcoin you will have to do it through sideswap to hide the peg-in and peg-out.
I like coinjoin, what I don't like is the business that has been built around it, so I prefer to use other more economical methods such as liquid and sideswap for example.
Liquid is very interesting. It's not for your pension fund but it's a great in-between step : between small lightning amounts and bigger amounts in cold storage. I can live with the federation tradeoffs for limited amounts. I appreciate the extra potential privacy. However, I really wish we could have coin control on liquid. Last I checked, neither Green nor Elements had coin control for liquid.
