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)
From my understanding and memory Raspberry Pi OS uses a custom LXDE derivative
Might be right; most of what ive done on pi was in terminal, so I very much could have missed the difference.
Is it available in package manager?