anbox VS redroid-doc

It's definitely possible, you have android virtualization options for linux like QEMU, VirtualBox, Anbox, WayDroid, but most of these are either not great or a bit too advanced for this. Easiest / best bet off the top of my head is dual booting Windows and using BlueStacks

This isn't really a distro, but you could try Anbox, which wouldn't have the performance overhead of a virtual machine.

Maybe with Anbox

If school apps have an android alternative anbox may allow you to use it on your linux desktop... Just a thought!

last commit was in september, seems like development has stalled. Let's pretend I said waydroid then.

Anbox - Android emulation (although AFAIU they're mostly a dead project now in favor of Waydroid... Although IIRC, Anbox does not require Wayland)

I've been trying to install ReDroid following this guide (replacing docker with podman) but the container gives only the following output:

Hmm, again

The building insturction is here. You have to manually build a ReDroid image with Gapps...It took me 7 hours and thank god now Gapps is working.

I would say redroid is better. docker-android seems to be something geared towards developers.

Might want to check out ReDroid

Any Linux distro + Android in a container solution(Example)(recommended)

don't test me in vice versa

And even better Android is a Linux too, and can run inside containers(*like separate operating systems from the same families sharing the same kernel) in every Linux distros you could find, for example Chrome OS' Android container, Anbox, Waydroid, Redroid benefits from that.

4- Android is a Linux distribution, basically same kernel can run both GNU userland of Chrome OS and Bionic Libc/ART userland of Android, without needing much resources, this is called containerization. It is nothing new, any regular GNU/Linux distro can run Android containers, Redroid for example.