> To avoid paying taxes, most employers strive to employ their workers via contracts meant for part-time or gig work, or through B2B (thus we have lots of sole proprietorships "entrepreneurs" in the country). Most protections don't kick in there.
I know that this "loop hole" exists where I live too, but AFAIK it's either used by very small companies, which can fly "under the radar" or it's not done at all, because inspecting agencies will quickly stop this.
Where I live if you work for employer like a full-time long-term employee - you are full-time long-term employee, and cannot work as a "freelancer"/sole proprietor-contractor (I do not know exact terms in English, but I think we'll understand each other). Work inspection will check this employer rather soon. Usually, because competitor or some employee will make an anonymous report.
If you agree to work on this loop hole - then it's your problem - work as a full time employee, or charge enough to compensate yourself for possible downtime during illness.
Big enterprises definitely do not use this kind of loop hole.