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Ifixit gives fairphone 5 a 10/10 on repairability and maintanence
(www.ifixit.com)
This is a most excellent place for technology news and articles.
Please define "weaker".
What are you talking about? How are you forced to buy some specific BT headphones for your phone?
And the argument about USB-C headphones being clunky? Sure, it may not be optimal, but you could always just buy a phone with a jack or give in and switch to BT.