"As mentionned by lnxmntadol the one from "software Manager" is not working (3.7) with Linux Mint 19.3 Cinamon, blocked in the middle of the installation. I installed the one from Signal from the website and it does work like a charm."
"Subscribed to PIA 1 month ago (as they support Mint), and it works great ! Just pity the software manager does not propose the latest version 1.7.0 but only 1.0.8. My review is based on latest version from PIA not the software from software manager. Switching between countries is quick, I never got a disconnection, it is possible to select algorithm and key length. @Mint team, it's your platinium sponsor, if you can push latest release there :)"