Underfloor heating, laminate, or tiles: which is warmer for the feet?

No, only the proper hydraulic balancing helps there.....then you don't need your thermostats anymore

He is probably right, a properly balanced system does not have this problem (of course, arbitrarily large temperature differences between the different rooms are not possible) ... and always keeping all doors closed... is that what you want?!

Exactly, proper hydraulic balancing, then you can also disconnect the thermostats, or just turn them fully open.

On another page it is better described, you are right if I wanted to have the same temperature everywhere. But I don't want that and at some point we will probably close the doors again :) meanwhile I live with the fact that sometimes a heating circuit is cold.

if I wanted to have the same temperature everywhere

but that has nothing to do with it...
Not to mention that in a modern house anyway only 2-3K temperature difference are possible at most.

A salute to those who still want to live analog. Thermostat and that's it. and whether one tile is a bit cooler than the other. who cares....

nordlys, the hydraulic balancing already existed in the last millennium ;)