You should switch to Morphe, no point staying on Revanced. Even the community is better and faster updates. I am not facing any issue on the stable version of patches.
How to update to this version in ansible? I don't see a tag for it.
The latest tag is 1.5.9 which is for v0.19.13.
Free rate-limted API is available from Reddit which can be plugged in to the client or through patching with the API token. That's how older apps like Boost, Sync etc. still work.
We use Firewalld integration with Docker instead due to issues with UFW. Didn't face any major issues with it.
As others have reported, YouTube doesn't give a shit about account age. It's based on what you watch.