Apart from Defender on 10 i only tweak visible services availible in services.msc and im not a networking expert by any means, i do 1 at a time/reboot until something breaks. I keep Themes(disable dwm on 7) and Printing cos i need them.
I have got 2 baseline services files for w7, one with networking, one without, for airgapping. I would apply them on 10 then do 10 specific services as already mentioned above. As i have not done anything for months i would need a major fresh just to get back to the point i was at and then some to go further. Ive got major health issues that have really messed me up. TLDR.
I know
MT_ disables a few device services but thats too far for me.
Like
AeonX said a while back the extra resources being used in w10 might be down to the infrastructure needed for uwp etc.
W7 barebone services with networking about 6xxx handles, without networking 4xxx handles. LTSC 1809 8xxx so far.