I woulnd't say it "becomes custodial" at some threshold (somewhat the opposite, it becomes less custodial after you have enough money to afford the fees), but I would say that *every* wallet under something like 5k sats is custodial - if you can't afford the fees to punish a counterparty for cheating in an L2, its not custodial.

Spark/the new WoS integration, is not really self-custodial at any threshold, but its also not custodial in the traditional sense (at least if you have enough money to exit).

So it becomes custodial when you have more than 10k sats?

bitcoin

No, the new Wallet of Satoshi is not "self-custodial"

bluematt

Its much better than other custodial systems in terms of trust model, but, yea, don't put all that much more in it than you would any other custodial wallet. Of course if you put too little in it its very much not non-custodial cause you can't unilaterally exit/force close without a fairly high fee.