Package compatibility

[enip]

Run this

Code:

dpkg --print-architecture

It should say arm64 i guess. That's your cpu arch in the PBP.

Next look into /etc/apt/sources.list and files (if any) under /etc/apt/sources.list.d/ I bet you'll see the official ubuntu repos listed there.

So the answer is basicly you can install anything from the official ubuntu repos for arm64 arch OR software built for arm64 from somewhere else.

Unfortunately you didn't provide any details on what errors you experienced with apt.

using either apt or the .deb package manager

Idk what you mean under ".deb package manager" but it case it is "dpkg -i xxx.deb" (and based on your question) I'd suggest you not install debs downloaded from some random place.