For me it was elementary OS. Dual-booted with Windows back in 2015/2016. Maybe 1 year later, I installed Linux Mint Cinnamon and gradually used it more than Windows. Now I am using EndeavourOS XFCE and only using Windows virtually… when I am bored or need to use Adobe Lightroom Classic.
I am apparently the privacy activist (not using Monero, SimpleX Chat, Degoogled Chromium, or Keypass, though). I do use uBlock Origin (Gecko ffs!) and Bitwarden (self-hosted Vaultwarden). Unfortunately, I am using Telegram, but trying to move all my contacts to my own Snikket server. It’s a very slow process.