I haven’t use Phoenix Wallet much, but it seems like their “exit” from the US market right now is just removing new app downloads from the Apple and Google apps stores.
I deleted the Phoenix app from my phone and I was able to download in the US via App Store (because I’ve downloaded it before). I’m not really interested actually spending sats opening a channel, but nothing indicates in the UI that it wouldn’t work (unlike WoS, you can’t receive at all).
This seems like the softest “exit” possible. I guess time will tell.