libreoffice is a nightmare to deploy to a large volume. even more of a nightmare to configure reliably. need admx? then you need to look at third parties such as collabora. these are not fully featured, good luck if you need fine tuning.
im all for dropping office. even prising outlook out of our environment but the alternatives are just a support nightmare for us.
as for deployment of office,i use ODT. worked for 2010, 13 and 16. A version exists for 19 too.
office moght be a shite but its cheap for education and easy yo deploy and maintain.