3.x was working pretty well for a long time. I had to reinstall and used the new version but then a yunohost update kinda broke my installation. I did a fresh install of Yunohost and things worked better so I didn’t risk reinstalling Pihole. Wasn’t sure whether to do 3.x or 5.x. Too much uncertainty for me atm. I had extra SBC lying around so made a little pihole.