Hoi @everardo, welcome! It seems like you mean well and yes SailfishOS or jolla likely need some sort of support to keep the boat floating.
Play with it but do not make your only retirement hobby, maybe go fishing or sailing instead of sailfishing-only. And you might well find yourself in a situation where something forces you to an iPhone or Android.
Maybe pick an “xperia 10 V” and ditch that c2.