RiF still lives on my phone, hoping one day I can use it again.

You can patch RIF to use your own API key, and with normal use you won’t exceed Reddit’s free tier API call limit. I used this guide to patch Relay for Reddit, but it has all the required info for RIF as well:

https://github.com/KobeW50/ReVanced-Documentation/blob/main/Reddit-Client-ID-Guide.md