In Göteborg SATS nor Friskis&Svettis were never closed during the pandemic. I also knew that Fitness24 was open all the way too. Which gym are you talking about?
My gym and pool area in the same building, run by the same company (medley). The pool was closed by the city and the gym was closed by proxy.
Fitness24/7 in town was so small that it was impossible to get in due to covid retrictions. Something like a maximum of 9 people which meant that it was impossible to get in during popular hours.