This sounds like a privacy and battery life nightmare.
How do Tile know where your laptop is? Most laptops do not have GPS and any kind of "well its on a network with this name so..." solutions are inaccurate at best.
How does the app know someone else's laptop is nearby? It must be constantly monitoring Bluetooth? And, I assume it requires Location permissions at all times. Both things that are permanently turned off on my phone to save battery, improve privacy and guard against security issues.
I guess their products are not designed for the tinfoil behatted like myself but if they are integrated into other tech how do I disable them?