uniswap and trezor wallet exchange have no kyc when ive used them
A bit misleading. You can
't exchange real Bitcoin Via Uniswap
Trezor wallet uses their party exchanges for that exchange function e.g. Changelly, ChangeNow, Shapeshift, and coinswitch and trust me, they will request for KYC at any time they want
Here is a disclaimer:
The exchange feature is provided by various third parties; SatoshiLabs bears no responsibility for the process, exchange rates, fees, or functionality. Trezor Wallet will always operate without KYC, as the Wallet or your Trezor device are not custodial. If the exchange providers decide to enforce KYC, registration and verification will be done by them. If you refuse to KYC, the transaction should be reverted. Your personal information will not be processed by Trezor Wallet / SatoshiLabs, nor will it ever be requested by the company. Customer support for exchanges will be serviced by the partners.