It depends on your staff size and each one's preferences. Expanding OS compatibility drives up gadgets' prices, so you need to consider if getting such units will be cost-effective.
Most Americans favor Mac and Windows devices over others because of their handiness. This is why a majority of manufacturers prioritize compatibility with these systems over others. However, some people choose operating systems like Linux and Unix for instant malware protection, low cost, low memory requirements, etc.
If you're the business owner or someone whose computer is central to your operations, you need to get a compatible thermal printer. The same goes if you have a large staff—say, more than 10—and you delegate some of the labeling tasks to employees who don't use Mac or Windows. Otherwise, wide OS compatibility is not necessary.