From their Twitter:
FireAlpaca 12th anniversary in this November! Thank you for your continued support! We have released FireAlpaca for Linux […] FireAlpaca for Linux is available for free download from the official website. (System requirements: Ubuntu 23.04 or later, Fedora 36 or later, Debian 12 or later.) -Download FireAlpaca for Linux firealpaca.com/download/
I used to, it’s brush felt lighter than krita back in krita 4 days. I changed my tune since switching to Linux and since they overhauled their brush engine.
I even recently went back to medibang for ze feels and their brush engine feels very barebones.