EDIT: I’ve came to realize that even though VSync did become more broken in this snapshot, making another bug report for this snapshot of a similar issue wasn’t the smartest idea and could probably cause confusion. This should be closed as duplicate as I’ll be moving information here to the older bug report.
Related to MC-308441. Toggling VSync with the Vulkan rendering backend now breaks with Exclusive Fullscreen disabled (Borderless). While previously it was only broken with Exclusive Fullscreen enabled, it is now broken with Exclusive Fullscreen disabled (Borderless) as well.
Environment
CPU: Intel Pentium Silver N5000 GPU: Intel UHD Graphics 605 OS: Windows 10