That's why they added a verifiable E2EE mode that encrypts before leaving your device all the way to the GPU's TEE. You can proxy and see the shape of the request if you like. The platform supports no-KYC signups too, so if you care you can disguise your user too.

When using their platform via web/app there's a temporary chat option that avoids local browser storage entirely. You can also wipe the local browser storage whenever you want.