I pre-ordered my filter with my Glowforge, too. It occurred to me after I got the Glowforge that I could rearrange my workspace to make venting out a window possible. That has been working well for most of my use.
Fumes from cutting acrylic can linger outside, especially on a still day. I don’t feel great about doing that to my neighbors. Using the filter for acrylic, the fumes are pretty much just gone for me. So, I’m keeping it ready for that and rubber, maybe felt …