Like this? I’ve done this for years on my work shoes. Normal laces don’t withstand sparks from angle grinder. I just keep them loose enough that I can get them on and off without cutting. I never open my shoelaces either.

This actually IS what they do in psych wards, so, this might be the most technically correct answer.

But don’t snip them flush when you strap them on so there’s a sharp piece of plastic waiting to gouge your hand open if you’re not careful.