WBTCBTC
Wrapped Bitcoin / Bitcoin
crypto Composite

That's something I'm wondering about, I've been using CowSwap for years after running away from Metamask and its \~2% slippage/fee swap system, and it has always been fine, until recently..
So i've done a swap from ETH to Wbtc as i'm borrowing on aave, and surprisingly I've got hit by a 1.6% fee, basically i've swapped 16 ETH and only received 0.441 WBTC. I've basically lost 500$.
And yes, i did check, it has come to their protocol fee address so I doubt it's actually a liquidity problem or anything related to that.

ETH -> WBTC via. Uniswap -> Redeem WBTC via. BitGo is likely cheapest, but will require dox on the BitGo offramp and not decentralized that way. Have you tried feathering smaller amounts through Thorswap? Been a while since I've used it. Might also be worth to find a local OTC counterparty and do the transaction in person if you can find somebody who wants your ETH. Following to see if others have some other creative options, good luck.

In principle, yes—though you would naturally have to bridge your Bitcoin. Since the Bitcoin blockchain doesn't support smart contracts, you have to place a certain amount of trust in the bridge provider (though there are reputable ones out there). However, bridges are relatively frequently targeted by exploits, so I wouldn't bridge "life-changing money" into WBTC. That said, it is generally safe.

Is WBTC safe?