Im sort of a worrier, but it might not be a bad idea to treat the fabric, carpets, etc, that are near the glowforge with a fire retardant spray. I don’t know if they’re all the same, but the two I’m familiar with are for porous wood surfaces/paper (leaves a slightly residue) and for fabric (no residue). And they’re nontoxic and don’t smell weird or anything.
Just in case you’re venting out a window and your glowforge goes up in flames, the curtains won’t, followed by your house. I’d assume most (all? Hopefully all) curtains and carpets are made to be flame retardant, but just in case there are some awesome handmade curtains out there in the world, belonging to someone who can sew straighter than I.
Only marginally related and random idea, but someone with the pro glowforge should make lasercut blinds.