Look! No ads!
Take back control. Choose Plasma.
https://kde.org/plasma-desktop/
(Microsoft starts testing ads in the Windows 11 Start menu: https://www.theverge.com/2024/4/12/24128640/microsoft-windows-11-start-menu-ads-app-recommendations)
To add to what the other person said, I think it’s a PEBKAC problem. I’ve only used Linux occasionally, but that website was very clear to me.
I’d still depend on someone else telling me if I should use Gnome or KDE, but I wouldn’t expect KDE to compare themselves to another option.