The question should be asked to a seller, not a user! FairPhone expressly says that e/OS/ and lineageOS can be easily installed on a FairPhone 3 or 4. I found on the web that these same FairPhone can be delivered with e/OS/ already installed under the name Murena Fairphone 3/4 for a price very close to the original product (I did not find any vendor who have both at the same time). Personally I haven't done the experiment, but my son has a phone with e/OS/ that he installed himself without any problem and says he has been very happy with it for over a year. Digitec should (MUST!) offer both, or even all three, OSes.