It's inevitable that it's going to change so you might as well get used to it :P.
But if you must, you can manually set your computer to an older Office release ring and it'll roll back, but eventually everyone will have this change at some point unless they offer an option to turn it off etc.
Anyway, here is a zip file with all the office rings you can set it to, to get older rings. Keep in mind, you will use some new features if you use any of them by rolling back to older builds.
https://webbtech365-my.sharepoint.com/:u:/g/personal/turismon_webbtech_org/ER-SfjCVoPdAmB226FpcMakBw...
