Recently Motorola followed by Samsung started disabling/locking devices flagged as “illegal” through Mexico marking a precedent over the remote control manufacturers have over the devices they sell! Only after Mexican government made an official request to manufacturers they removed the lock.
Sources: https://linustechtips.com/topic/1537307-android-phones-disabled-remotly-in-mexico/ https://www.sammyfans.com/2023/10/23/samsung-stops-blocking-illegally-imported-galaxy-phones-in-mexico/
If we wanted to own the devices we bought, we would have needed to start 20 years ago.
Now it’s too late, the only reasonable thing you can do is clawing back control over your device by installing a custom ROM.