I haven’t used postmarketOS, but I don’t see why it would be any better than Mobian or Manjaro (Manjaro might not be the most stable though). Maybe you are talking about Android phones, in which case you are probably right - other distros might not support those so well. postmarketOS and other distros don’t use mainline Linux, so I don’t know why you would call them that, though. For me this is the biggest flaw of GNU/Linux phones.
I know that postmarketOS developers contribute a lot in different areas, but so do Mobian developers. I think the kernel we use was initially developed by Megi.
I haven’t used postmarketOS, but I don’t see why it would be any better than Mobian or Manjaro (Manjaro might not be the most stable though). Maybe you are talking about Android phones, in which case you are probably right - other distros might not support those so well. postmarketOS and other distros don’t use mainline Linux, so I don’t know why you would call them that, though. For me this is the biggest flaw of GNU/Linux phones.
I know that postmarketOS developers contribute a lot in different areas, but so do Mobian developers. I think the kernel we use was initially developed by Megi.