I just ran the easy installer against a Fairphone 4 off of ebay, using the most recent version of Kubuntu. And I must say the process was smooth. Just wanted to thank the community for this tool.
I was really impressed, it even held my hand through the unlock process and relocking proccess.
I am no stranger to flashing my own phone, but it had been a few years. It was great to have a streamlined process.