Filters cannot work. Knots is a bad fork. A good alternative would be something written from scratch that follows consensus rules and is more performant.
PS I'm straight, thanks for your interest, but no thanks.
Discussion
Filters have worked for years until a bunch of con artists, pardon maintainers, decided to “fix” a vulnerability that allowed data to bypass them, by changing the documentation. In other words they swept the bug under the rug. If Knots is a bad fork, so it’s Core since they’re 99% identical. Actually Knots has patched a lot of bugs that are present in Core to this day. I’m in for client diversity, so I’ll cheer on for a good alternative to both Core and Knots. So far I’ve not seen one.