ReVanced can patch most of the popular apps with your own private (free to use) API key.

Step by step guide if you’re interested

I’m sure Reddit is seeing private key usage sky rocketing on their end since ReVanced released these patches. Whether or not Reddit chooses to do anything about it remains to be seen, but I can’t help but wonder how long it will last.

Nowadays I still stick with Lemmy for general scrolling and only go to Reddit for my niche subreddits that don’t have active equivalents here.