I use BiglyBt on Debian. I use BiglyBt because I previously used Vuze, and I used Vuze because I previously used Azureus. I don’t really remember why I went with Azureus originally, but it may have just been because it was popular at that time.
I get the impression most people use other bittorrent clients nowadays, but BiglyBt does what I need it to do. I never really used any of the “advanced” features of Vuze myself, pretty much only using it for torrents.
My first Linux install was Slackware sometime in the late 90’s. I didn’t really use it though, as I never managed to get it working with my dial-up Internet. Stupid winmodems.
The first distribution I actually used was Mandrake. Others I’ve used since then include Suse, Ubuntu, Debian, Mint, Manjaro, and EndeavourOS. I’ve landed on using Manjaro on both my main desktop and laptop, though I have secondary machines running Debian, Slackware, Ubuntu, and EndeavourOS.