Thunderbolt Docks – cross platform compatibility?

I’m currently looking at various laptop options, and Thunderbolt docks to go with them (sorry, Microsoft – I’d buy a Surface Pro if it had 8th gen processors and Thunderbolt, but you’re out of the running for this purchase), and I’m bumping into an issue where disparate prices – or even nonexistant products – mean I might end up buying a Thunderbolt dock from one OEM (most likely Lenovo), and a laptop from another (HP or Dell). Has anyone had any experience seeing if docks from one manufacturer work well with laptops from another? Part of the benefit of everyone moving to Thunderbolt should be that you can mix and match. But I have no idea if that works in practice.