It’s possible for a certain hardware/software setup not to support a certain codec. For example, my jellyfin client (Finamp) uses the iOS native decoders (afaik), which means opus files are practically broken. My music library (8000+ songs) contained exactly 1 lossy file, which just so happened to be an opus file. I decided to spend the extra ~20MB to standardise my entire library to flac files, ensuring I could play every song on all my devices.
Edit cause I posted too soon: you are generally correct; only in very specific circumstances will you encounter compatibility issues like this one in the modern world. This is 100% apple being apple, and you can expect pretty much every other (reasonably modern) device to support all codecs you might encounter in the wild.
I feel like you’re missing the point. My point wasn’t about your income, I wasn’t trying to attack you personally in any way. I was just pointing out that it is unfair to say “their 3.7% is not enough,”: they’re clearly doing way more than required by NATO norms. In fact, they’re second to just Poland in terms of relative spending. Don’t attack Estonia, attack Spain, Slovenia, Luxembourg, Belgium, Canada, Italy, Portugal and Croatia, all of which are below the 2% norm (in order from lowest to highest). Or better yet, if you live in a NATO country: vote on politicians that take our defence seriously (unless you’re American of course, cause that probably won’t help anyone for the foreseeable future).
TLDR: sure, 3.7% might not be enough, but 1.3% is even worse (Spain). No offence intended.