Yes, there are few reasons to go to a Swedish bank branch, and they've been closing branches, too. Almost everything is done online - really goes for most things in Sweden, not just banks.

You don't even visit a branch to become a customer as long as you have an account with some other bank, which gives you BankID, a digital ID/signature system that's ubiquitous in Sweden. I have accounts with three Swedish banks. Of those, one doesn't have physical locations to visit, and a second I never visited. It's surely been ten years since I went to the third, my main bank, in person, and the branch office I went to closed years ago. Looking it up, my main bank only has one office left in the city, it's only open for three hours a day and requires a prior appointment for any services.

Cash is only handled by a few bank branches (not all banks) and even then by prior booking - cash has been pretty much gone from society for a while now. Your card gets sent to you by postal mail. If you need to talk to someone at the bank, they'll suggest telephone or video calls, and will only see you in person as a last resort. Safe deposit boxes have also been largely discontinued as a service.