I have everything from XP up to W11 available to me plus Win'95, either as a physical machine or a VM. All of them can connect to my network.
I'm equally comfortable using W10 or W11 with a slight preference for 11. W8.1 I can't stand, I only give it house-room so I can answer support questions. W7 is still quite usable and practical. XP is showing its age and feeling a little clumsy to use now.
If you really want to see how much Windows has progressed,
try using a Win'95 machine. Mine is there for nostalgia and the few support questions that still get asked about connecting it to a Win10/11 network