I'll try to be concise here, but lots of numbers coming your way...
Currently running Shimano 1x11spd, 11-46 cassette with RD-M8000-GS rear dr. The three lowest sprockets are -32-37-46.
The derailleur specs indicate 40T as the Low Sprocket Min. https://bike.shimano.com/en-EU/product/component/deorext-m8000/RD-M8000-GS.html
I'd like to change to a 11-36 cassette, and I wonder if the rear dr will work as designed. I don't see why it wouldn't - it works just fine on the 37t sprocket, as well as all the smaller gears that are on the cassette.
Thoughts? What am I missing? Is something going to bite me in the rear-end if I switch to an 11-36?
Thanks for your help.