This problem is still not fixed. I just downloaded the new v2026.4.10.4057 installed it fresh on Win10, on the same path as the default, but on another drive. It launched after installing and then, boom, unable to tab out from startup. I went to the settings and changed display to borderless and then it finally allowed me to tab out, but then the windows taskbar is showing as the other people are saying. Strangely Alt+Enter changes display into fullscreen again, but pressing Alt+Enter again does not switch back to borderless