This problem happens when using Accordion-style stacks: if the stack is open, when you rename the stack, the pop-up doesn't show the current name that you have assigned to the stack. This makes it annoying to revise a name that you have given a stack.

This isn't the case with Two-Level-style stacks. Here is the same stack that was previously named "Vivaldi forums":

Screenshot 2026-07-26 at 15.57.02@2x.png