Re v10.7.3 (1966) running on macOS Big Sur on M1 (Apple Silicon) MacBook Air.
1. Running RD no longer shows as running in the Dock. No longer possible to switch remote desktops, or do anything except quit to launch a different remote desktop.
2. Settings has Dock operation set to "Automatically hide and show the Dock" OFF. But when RD is running, Dock hides and shows, very irritating. This happened in previous RD versions also.
3. This update has a "trash can" to delete a desktop, on the main desktop thumbnail. Really Bad Idea. Only under the "..." is far safer, as fast power users could easily delete by accident.
4. Last thing: why can't the "Saved PCs" group be deleted or renamed? This is ridiculous - ALL PCs, in any group, are Saved PCs.