Collabora cell borders in spreadsheet

I’m trying to get the company on-board with trialling Nextcloud combined with Collabora rather than pushing for Google Apps as that will cause chaos for MS Office licensing we already have (long story).

Anyway, one of the show stoppers is cell borders and colouring in spreadsheets. If you colour in a cell in the spreadsheet you lose the borders of the cell. The only way around this I can see is to save a blank spreadsheet with all the borders already set with a black 0.5 width, then Collabora will honour cell borders.

Does anyone have another option, advice or solution? Would I raise this here or with the LibreOffice online team?

Thanks for any help.

For me this should be adressed to LibreOffice online team.