Interested to know if this is for international travel, or just within your country’s borders? I would be concerned with this going through airport security, whether in carry-on or checked luggage - x-rays can damage electronics, and the potentially suspicious appearance of electronics to the non-technical could cause problems.

Everyone who uses O365 is pushed to use the web versions by the O365 ecosystem. When you click on Word/Excel/Outlook/whatever from your menu, it opens the web version; to use the locally installed app, you have to go to File/Open in Desktop or similar. The Open and Save dialogs default to using OneDrive - saving to local filesystem requires extra steps. The locally installed ones are becoming increasingly hard to use, by design, and the new features seem to be going into the web versions first and the local versions “eventually”. For example, the new excel “matrix” functions did not work in local excel the last time I tried to use them, though they might now, but there were a few features (special formatting I think) that only worked on the local version. Templates for word do not work on the web version.

Interestingly, the web 365 apps seem to work on Linux Mint, but I’ve not used them extensively, or on another distro. I did a migration from Win10 to LM last autumn, and I was genuinely shocked to find that web Outlook and OneDrive work on Firefox on LM. Confirmed that web Excel and Word worked enough to allow display and editing of documents - not an extensive test, but definitely worth a look. Obviously, there are still differences between the web and desktop versions, but it might even be possible to run them under Wine, but I have not tried that, and woudn’t expect it to go too well tbh.

Can confirm. I used Linux and Unix almost exclusively for about 20 years, and when I more recently had to use Windoze again for work, this is pretty much what happened.