version 2026.05.1 On Win11 . I have a dual monitor system.
On monitor A, window in full screen mode. Grab to move to monitor B. RStudio snaps back to monitor A, in partial screen mode. So can only move to other monitor if NOT in full screen mode. Same result if in full screen mode on monitor B, moving window to monitor A
Other programs: if grabbed to move from monitor A to monitor B while in full screen mode in monitor A, the program first shrinks to partial screen mode, and transfers fine to monitor B, in partial screen mode. Does NOT snap back to monitor A.
RStudio is the only program which does this 'bounce-back' when in full screen mode.