I already wrote about disabling hi-res in the settings of the game to make it run.
New with 26H2 is, it won’t anymore start if more than 1 monitor is enabled in Windows 11 26H2, disable all secondary monitors makes it run again!
About Yesterday, I wrote in the same post how to patch a sound bug introduced with censorship done for the GOG and Steam releases. New for Windows 11 26H2 is the neccessatiy to use dgVoodoo2 or else it will hang at the first loading animation.
New is, that also now The Next BIG Thing requires the use of dgVoodoo2 or else it will hang at the first loading animation, too.