I pluck mine with tweezers, and on occasion I just go over the areas I don't want hairs on with a razor. It's very annoying and takes forever for me to pluck mine though, cause they're very thick with very many hairs and also lots of thinner like darker peach fuzz hairs that are tricky to snatch with tweezers.
So that's why I sometimes just use the razor instead, cause it's so much quicker and easier when my eyebrow patience is wearing thin. Cause sometimes I have to try a million times to snatch one hair but the tweezers just don't catch it, and it makes me furious. So I might want to try threading instead if that has a higher success chance on catching those little buggers!
I mean I really like that I have thick eyebrows, cause I can get away with just dyeing them black or dark brown and don't need to fill them in with makeup. I also love that they're naturally very arched, so they don't need much shaping to look really good and totally match my kinda extreme goth look. They simply come with a lot of potential and endless possibilities, and I really like them for that.
I rarely cut their length though, only a little on my left brow where the hairs grow in a different angle which makes them look longer and assymetrical to the ones on the other brow.
But also I cut a few hairs on my right brow where I have a scar (from a failed eyebrow piercing) to empathise the scar. That's more in the category of "unconventional beauty" routines though, perhaps. Cause it more so makes me look like a comic book villain, which is a look I highly strive for!