You're correct, apologies for my previous misinformation. On further examination: the Flare approach, in contrast to wrapped BTC, takes a 'non custodial' approach and instead wraps BTC, xrp etc as FBTC using their FAssets system of overcollateralization + enshrined oracles.
So the Flare network is more decentralized than the wrapped BTC approach, but it's not completely trustless, and introduces more potential attack surface. So in comparison to the wbtc bridging systems, one risk (of custodial misappropriation) is replaced by other risks of data manipulation.
It's interesting to learn about this stuff, but the Flare.network website does a rubbish job of telling visitors what it does.
So the Flare network is more decentralized than the wrapped BTC approach, but it's not completely trustless, and introduces more potential attack surface. So in comparison to the wbtc bridging systems, one risk (of custodial misappropriation) is replaced by other risks of data manipulation.
It's interesting to learn about this stuff, but the Flare.network website does a rubbish job of telling visitors what it does.