It seems like a lot of european countries have started becoming more concerned with digital sovereignty and some have begun enforcing using open formats like ODF / ODS
I’m struggling to find support though. A lot of software seems to open ODS files but force the XLSX format on save.
I’d expect something like OnlyOffice to have support since it’s used by the French government and the government of their German neighbours is enforcing ODS usage + there should be a reasonable library they could import to make it work without a large overhead


But that’s kind of the problem. If it’s only supported in one or two apps, is it really an open format?
For example, I use Libre Office on my laptop. However the printer driver for my printer is no longer supported and Microsoft keeps installing a broken one over the one that works. I can no longer reliably print from my laptop.
But printing from my iPhone has been flawless for years. But if I try to look up how to edit and print open document format on my iPhone, the answer is “Microsoft Word”. How is the “open” format not supported, and why do I need to switch to a proprietary format?