If it becomes common, people just accept the minor incompatibility and move on. It will also get better as funds and attention flow to these projects.
As far as I'm concerned, LibreOffice lacks no features I would remotely consider using.
It's like when Windows was the sole mainstream OS, it wasn't an excuse "oh but I'm on Mac and can't run this". Now Macs are mainstream, and Linux is not, it's still in a "weird nerdy" corner. But not so if it just gets more widely used (it's happening, just slowly).