I'm using the website of my instance. Lemmy instances typically have their own website you can use - which is exactly or slightly modified versions of the interface of the Lemmy project.
If you trust your instance with your account and its associated data surely you trust it's website.
You'd think the lesson would have been learned by hive mind drive-by down votes with Reddit. You always know when somebody (actually) can dispute what you say, because they say it!