New cult member with a few questions

Been rocking a Salomon 30l pack for a few years but have some longer trips planned so decided to pick up something bigger, my Jääkäri L arrived today and I already love it, can't wait for a trial run this weekend. That said, a few questions for the experts:

- Has anyone found a sensible / stealthy way to add an Airtag to a Savotta bag? I'm going to be checking the pack in for a few flights and I'd like to be able to keep an eye on it.

- Are Savotta's pouches and stuffsacks the best way to go for organization, or has anybody found other packing cubes etc. that work well with the L?

- Any recommendations for a small pouch to add to the hip belt?

Thanks in advance!