My guess: Windows 10 + ancient Intel GPU + broken driver situation.
This will cause havoc, there are tons of issue that can be had, I would of been more concerned if you said it was Windows 11 on a mid-level system.
So yeah, pretty much expected if I'm honest, thanks for trying it though! :)
And about "boons", there will be ones based on the samples that's in Blitz3D, but sometimes, they wont be like for like due to the differences under the hood, but they will show "the other way" so to speak!