I think I recall that others have done this so maybe a little time using search will pay off.
HotTop uses a similar approach which is built into the roaster. With beans that are particularly oily it can get overwhelmed, but then theirs is a very limited capacity system. What you suggest ought to do much better. I’ve seen similar vacuum-based products that are commercially available for smoke collection.
I suspect a significant concern would be power for that smoke collector. To be of any use to you it will need to move a lot of air and that means it will need a fair amount of electrical power. You’ll probably want to consider separate circuits (different circuit breakers) for the filter and for the roaster. Even the V2 Bullet will be sensitive to changes in power line voltage.
Of course, since I’m in the US, I have half the line voltage which means twice the current for the same amount of power. Our household circuits are near their single-circuit limit with the Bullet.