Is it?
I like a UI without a minimum screen size. I am livid when I can't use a fixed-size-settings dialogue because a driver/monitor is misbehaving so I'm at min resolution. The sort of issue where you have to find another machine so you can "count tabs" for keyboard navigation to get at things off-screen.
Many other cases: e.g. I like to use VMs or RDP in small windows. I also like to resize a settings window into something tiny or tiling it when doing something I need to do toggle something back and forth.
I agree it's bad if it's a long list of barely related things you have to scan each time to find what you want. The "categorised scroller" type dialogue vscode uses for settings in in theory the best of both worlds... but I keep finding myself accidentally scrolling beyond my intended category causing myself much confusion.