In my experience, if companies are providing sponsorship it's so that a company can get resources that they can significantly underpay (whereas typically EU salaries are roughly on par with US) or so that they can get particular skill sets they can't find anywhere else (lately that seems to be all about AI folks, but I'm sure there are plenty of other examples). It's not super common, but I've seen sponsorships for NetSuite admin/developers a few times, but every single one has been folks from India FWIW.