You're asking two questions here. One is about some kind of purity test, which... You gotta let that one go. The crowd isn't here to pass judgement on you, and asking it to do so is a kind of psychological self harm.

The other is about whether using a particular Reddit front end supports Reddit. The answer to that is an unqualified "yes".

The two together point to you wanting to use Reddit, but not wanting to be judged poorly for doing so, and that's an anxiety state you don't deserve to live in. You either believe strongly enough about not supporting Reddit for your own reasons to not use it, or you don't. And that's ok, because they're your beliefs. You're not some soldier in some holy war.