This operation reliably destroys the shape of holes in my case. I dont have that problem in Max or Maya. Is that a bug in Blender? https://imgur.com/a/vd51m9o
SPEEDFLOW BASICS - 02 Bluetooth Speaker The second of a series of videos for beginners to learn Speedflow and modeling on Blender! https://www.youtube.com/watch?v=xUV6zCosP60
Might be worth filing a bugreport for it in that case or just raise it on the Blender Devtalk forum as it sounds like it might have just slipped through the cracks.
ARQUITECTURE! Wouldn't be possible to add a Blender tutorial section on the Polycount Wiki instead? And before posting a link to a tutorial, to at least watch it to confirm the quality.