My first dive into GNU/Linux was with Mint in February 2025 which I installed on an old 2012 Mac Mini. It was a great first experience but I wanted to try an "entirely free" distribution. One of the recommendations is #trisquel and I gave that a go with the KDE desktop. Installed yesterday, loving it so far. No wifi as the card driver/firmware is nonfree, often an issue with "free" distros. I use ethernet so not a problem in my use case.