Opening support tickets is the way to go for this, see other PF2 users’ experiences here:
The other issues you mention are best discussed in the topics that you link to. For those for which there is no topic, a new topic can be opened if there are no other relevant topics. Having topics with multiple issues being discussed doesn’t work well. It’s also difficult for other community members to help if the problem being discussed isn’t apparent from the title (as probably very few people will read all of the ~100 topics created each day). If you want an official reaction (I’m not entirely certain what it is that you actually want/expect), you’ll need to contact official Fairphone support as most people on the forum (including the moderators) are Fairphone users like you.