Not an expert either. But I think you have fairly strong protections in the law from getting unjustly fired. The union agreement will give you extra protection

Not an expert either. But I think you have fairly strong protections in the law from getting unjustly fired. The union agreement will give you extra protection on top of that, but I think the biggest thing in your favor is that the union lawyers will sue the company for you and represent you in court. You can get fired for bad behavior or abysmal performance. Not easy for the company to do, takes a lot of documentation and warnings. But layoffs is a completely different matter. If the sales go down, people will get laid off. Maybe they'll get better terms, but Sweden isn't France where the unions will force companies to keep tons of people they don't need.