It’s definitely not great here at all, though I’d say it’s a bit different for professional software developers (who probably make up the bulk of contributors), since that kind of job tends to give you better benefits. In my experience, it’s typical to either have unlimited PTO (that you may or may not be able to take, admittedly, though I’ve never had an issue with that), or at least a couple weeks of vacation a year. I’ve never worked anywhere as a software engineer where I had to really even account for sick time at all. I just tell my team I’m sick and that’s about it.