I've not tried the free one, I went straight to Office 2024 (non-subscription model), but it seems the free one lacks formatting, options, limited dictionaries. It seems a basic office suite (which admittedly is probably fine for most people).Have you purchased the full version and, if yes, does it have any advantages over the free one (besides no nagging)?
I'll take the plunge and buy the non-sub version, partly to pay the developer for their work, and partly those increased features will be used.
For me, I largely only use excel, and so the issues are only related to the spreadsheet. For OnlyOffice I found that settings are not remembers, On one spreadsheet I color code the cells a certain color. In excel that color selection remains, so I only need to click the toolbar to color a given cell. OnlyOffice I have to keep selecting the color in the color palette when I open up that spreadsheet.What were they compared to how you used O365?
If I keep the app open for days, and try to edit an opened spreadsheet it doesn't take my input. I have to close it down, and start it back up.
Pivot table oddities, to what I'm used too.
Formatting cells, in excel I hit ctl-1 and I have the ability to make all sorts of adjustements to the cell, in OnlyOffice the formatting doesn't exist in one easy to use area.
These are not show stopping issues, but enough to make me look for alternatives.