The way it should work, is that if the keys are nearby the user that owns them, the tracker shouldn't be giving unknown tracker notifications to other nearby users.
Curious that you are saying the travel eSIMs are a scam.
I've used them quite a lot around Europe and once or twice in Africa (and even locally, when I didn't have an unlimited data plan and used all of my allotted data by my carrier and it was easier to just buy an eSIM), and my experience has always been pretty good.
That feature only exists on family/team accounts, and in that case the account that is allowed to perform recoveries has an escrow of the vault passwords of other team members.
Some exist. I have the Philip 279M1RV, which is 4K 144Hz with a built-in KVM. It's not a perfect monitor, but was the best one I could find for my needs, spec-wise.
The way it should work, is that if the keys are nearby the user that owns them, the tracker shouldn't be giving unknown tracker notifications to other nearby users.