I feel your pain, @Fellfrosch . /me is also in the same situation atm. The phone which has the best adaptation including good working AAS is Jolla C2 atm. This is the phone, which enjoys the most development from Jolla. But the hardware is weak, display is bad and it lacks features, which Xperia 10 III had onboard (5G and Fingerprint).
So now i have 2 devices with me: Jolla C2 is my SailfishOS phone and FP5 with /e/OS is the second one. FP5 has a very good SailfishOS adaptation (thanks @mal ) but no official AAS support is a showstopper here. Its need very little to fix the AAS bugs on FP5, but it needs clarification from Jolla. I am sure, if Jolla would make a statement, that the AAS on the FP5 could be official - than the latest bugs could be fixed. Till now, we have to wait, until Jolla release a new community device with better Hardware or they offer official AAS for ported devices like FP5.
AAS packages from Jolla C2 works on FP5, but DNS is broken, browsers doesn’t work, camera in the android apps doesn’t work. All this can be fixed, but who could be asked for help? Atm. its illigal to take packages from one device and put on another. (and without aliendalvik repo the pakcages wouldn’t update)
I asked Jolla many times: offer AAS as commercial product for the 3 best ported devices. Get money for the subscription, let the people use the hardware they want…
But since 10 years we have: Official releases of SailfishOS on entry or middle-class devices, ported releases on high-end devices without AAS.
This situation is bad, and need really a change here.
@piggz supported me to get my device running again in an acceptable manner. Main camera and flashlight are still not usable, but apart from this most things work like they should. So at the moment my frustration is at least somewhat over and I have a daily driver again. Anyway, I decided to order a battery for my Xperia 10 III - just in case.
And I ordered a Xperia 5 IV as well because I find it a very sexy device - Sailfish can be a quite expensive hobby. The flashing process for this device seems to be quite complicated. But @rinigus spent some work on documentation and helped already @bundyo to get Linage compiled. So we will see. At least I have not the pressure to get it running immediately.
Dream mode on
If everything works out fine I have at some point two very nice devices, which are running on Sailfish and I can switch them just to my liking (big screen vs compact phone). If at any time the two Xperia 10 IVs are fully supported, I can even lift my girlfriend to a faster device and have still one in spare. Then I still have the C2 which I can in this case maybe donate for a hackathon or something like that. Dream mode off