I'm beginning to wonder that myself any answers in the comments gallery would be helpful.
I'm not a Tech Guru :)

Yes.

It’s definitely possible. I’m no tech guru but there are lots of them out the. I think you can also just Google it and you’ll learn what to look for on your phone to find out if it’s being tracked. Some exes are psycho for sure.

Ya we get that part being tracked :(
Any advice to get rid of these tracking devices or block them ?

Apple just released a mass market global tracking device so check your backpack's inner pockets :o

Just Google How to Track a Cell Phone Location Without Them Knowing 2021, and you will have the answer. Oh, and Google is tracking you. Our devices are tracking devices. With some effort you can keep big tech/data from tracking you, but you won't because it's inconvenient and troublesome.

a tinfoil hat will stop his/her snooping..

You're not crazy. There may be an app that's tracking you.

I can cope with inconvenient and troublesome. Please elaborate.

Get a Life your Ex has Moved on. Sounds as though you may be the stocker.

Anonymous that's Funny.
You are an Open Book.