If you own the company that tanks it is harder to get the unemployment insurance [1] (in Swedish) but it is possible. The 80% maxes out at 18 700 SEK / month ($2300) before tax.
> The 80% maxes out at 18 700 SEK / month ($2300) before tax.
Many unions will offer you cheap insurances covering up to 3 times that amount. And you can actually be in the union and get many benefits even as an entrepreneur.
[1] https://www.foretagande.se/a-kassa-for-foretagare-sa-fungera...