I agree that if possible, you should set up a separate Docker container or perhaps sign up for a subscription plan for Collabora or Onlyoffice document server (e.g vioffice.de or webo.hosting).
We have tested both Collabora and Onlyoffice and prefer Onlyoffice. Onlyoffice interface feels more modern and the default file format docx/xlsx is a big advantage.
(Note, If you install the free Onlyoffice document server community edition, mobile editing has been removed.)