The biggest problem I see with WoS is that you can only access your wallet through one of the apps (Apple or Android) Alby, being brower based would have to pull their IP from US access... Which would still be available using a VPN. (please correct if I'm wrong)
That makes sense to me. I already use a VPN, so I'd just have to point it somewhere outside the US, if Alby ended up having to do that. Still, I think I will keep the amount of sats I have in Alby to a bare minimum and move them over to one of the self-custody wallets that have been suggested.
Of course, never keep any btc in a place you don't own or control. Alby and the like are checkbook money, not savings money or investment money.