unlimited-tethering VS no-tethering-restrictions

Otherwise anyone one can bypass the "no-hotspot" thing and use the internet from the phone on the laptop anyway (looks more complex than it is, just a socks proxy using Termux's sshd).

idk if this'll work but https://github.com/RiFi2k/unlimited-tethering

For example, I was wanting to use one of my wifi adapters as an access point to share my phone's connection. (I tunnel my laptops traffic through termux on my phone in order to bypass my tethering data cap). So I checked the wiki, and there were several ways to do what I was wanting to do. Most of them would take at least (for me anyways) a couple hours of configuring. But near the bottom of the Software Access Point page is a section on an AUR package (linux-wifi-hotspot) that would do everything I needed, with one command, and even had a GUI included.

Here's a nice tutorial for our more technical siblings.

Carrier variants devices may come with built-in services that detect hotspot usage in "unprovisioned" devices. At least that was the general consensus; TMobile sniffs data for TTL and destination, it also hijacks your DNS queries whenever possible. Sounds complicated but all you really need to do is have DoT/DoH enabled on your devices (optional) and go down this thorough list of methods.