they will still track you, because it's not your phone they track but your sim.
So if you move your sim to an hotspot, you move the problem and they will track the hotspot instead.
also Wi‑Fi‑calling can leak the same IMSI over the internet, so you will remain trackable.
And disabling 2G, 3G, or 4G on the client side will do nothing as it's a vulnerability in the ISP core network.
As such it will remain.
The only FIX is to disable everything brefore 5G (Stand alone) and use 5G stand alone.
As 5G NSA (Non Stand Alone), use 4G control model that is vulnerable too.
and as i said previously, the hotspot itself will be tracked anyway in your "test"