Ich meine, mehr Auswahl kann sicher nicht schaden, aber
This app may share these data types with third parties: Location, Financial info and 3 others
This app may collect these data types: Location, Personal info and 4 others
Da finde ich die Open-Source-Varianten doch attraktiver, selbst wenn sie weniger Features bieten oder ab und zu Bugs haben sollten.
As @[email protected] already said, a non open source app will probably have acceptance issue, getting away from a proprietary app is the reason why many people are here in first place :) .
One of the most important things about open sourcing code is to find a well suited license and it's not just about choosing any license but to also have all the dependencies in mind. But I'm sure the people for example at [email protected] would be glad to help you if you want assistance in choosing an appropriate license.
Other than that, managing (small) open source projects is actually pretty chill.
Debian is not easier than Ubuntu, the opposite is the case, you have to tinker around with some things to get them work how you want them. Usually you end up with a system which is more suited to your needs and preferences, but you have to put more work into it.
In terms of stability, it's not like Ubuntu LTS Desktop will just break down, I use it way over 10 years and it never end up in a broken state (well it did, but it was my mistake). It's more of a server thing, were you can just install updates without having to fear that something got incompatible.
From the software part, I think this is only an issue if you're a developer. If you want something like the most recent LibreOffice, you can just install it via Flatpak. A bigger issue arises if you need something like a more recent Python or GCC.
From the hardware part, you should of course always check beforehand with a live distro if your hardware is supported. Debian 12 however is very recent and should support most recent hardware and it will keep supporting it unless you upgrade e.g. your GPU.
Möglicherweise ist das der Fall, aber gerade dann wäre es interessant sich den Source Code anschauen zu können.
Solange das nicht der Fall ist, muss man halt damit rechnen, dass die App von seinen Usern Bewegungsprofile anlegt und gemeinsam mit (nicht näher definierten?) Finanzdaten an Werbefirmen verkauft. Immerhin ist es genau das, was auf der App Store Seite steht.