Returning to m-boxing questions re FTL

[MiRai]

is keyclone still a thing as I don’t see it supported on the forums that much anymore, did it fall foul?

It's probably still a thing, but this forum doesn't dictate which software is and isn't supported anymore. It pretty much comes down to the concept that if people use it and have questions about it, then they ask their question(s), and if someone has the answer(s), they reply.

also, there used to be a sticky for setting up Leaderless/ focus less for keyclone, was it removed for reasons?

I am not familiar with a sticky thread for Keyclone and FTL, but if the thread exists, then the search function (or Google) should find it.