Remove Pro advertising from Apt

As it seems the problem won’t be solved in the near term. I’m thinking about pragmatically giving into a free personal Ubuntu pro subscription to make the messages go away, but then I read the following:

As I stated above, I’m running:

So now all of a sudden an important legal issue lurks beneath:
What qualifies as a “non-desktop” use case?

I’m running an old 32 bit headless Raspberry Pi 2 with Ubuntu Server (a minimal installation) for personal use.

Is that a “non-desktop” use case? (Running a full fledged desktop on an RPi 2 is very heavy, it swamps the little computer making it useless.)

How can I find out if my setup is a “non-desktop” use case?

I tried commands: lsb_release -a, uname -a and pro status (see outputs below), but none give me any helpful information about determining if this is a non-desktop use case.

lsb_release -a
$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 22.04.2 LTS
Release:	22.04
Codename:	jammy
uname -a

$ uname -a
Linux bug 5.15.0-1026-raspi #28-Ubuntu SMP PREEMPT Fri Mar 10 14:33:39 UTC 2023 armv7l armv7l armv7l GNU/Linux

pro status
$ pro status
SERVICE          AVAILABLE  DESCRIPTION
esm-apps         yes        Expanded Security Maintenance for Applications
esm-infra        yes        Expanded Security Maintenance for Infrastructure
livepatch        yes        Canonical Livepatch service
realtime-kernel  yes        Ubuntu kernel with PREEMPT_RT patches integrated

This machine is not attached to an Ubuntu Pro subscription.
See https://ubuntu.com/pro

What commands do I have to enter in order to find out?

What if I might decide to install a little web server later on, will I suddenly be in breach of contract and liable for whatever?

Will Canonical be surveilling my system remotely?