I've been hoping between KDE and Gnome recently and but it feels like I am going to settle on Gnome. My experience:
Both Desktop environment support:
- Wide Gamut monitor (Gnome requires to enable it through terminal)
- DCC Brightness adjustments (native on KDE, Gnome requires an extension)
- Preserve battery health (native on both)
Gnome:
- I find it sleek, smooth and fast
- Google Meet PiP works natively
- Learning curve is steeper coming from a Windows environment (had to watch a Youtube video to understand the workflow and workspaces)
- Software app is so much faster than Discover
KDE:
- Feels mature and easier to customise
- Has a feature to boost volume (useful with my low power laptop speakers)
- Cannot get Google Meet PiP to work
- Apps are slow to start even after a fresh Fedora installation
- Not as smooth and sleek as Gnome
- Faster learning curve, similar to Windows experience
- Discover is so slow