I would put lack of RID broadcasting far above visibility for VLOS! Last thing you want to be doing while flying BVLOS is broadcasting that fact, and your location, to everyone with an RID app!! Mini 4 Pro with regular batteries for the win! LOL!
There are three Reasons why VLOS matters to me.
#1 Its much more fun flying when you can really see your drone.
#2 Seeing your Drone clearly will give you much more confidence in your flying
#3 Guest Friendly
Phantomrain.org
Gear to fly...
Never.
However, the size of the drone can matter if you're planning to do something like attach LEDs to make it easier to see. Smaller drones have limited payload capacity and fewer accessory mounting options.
One more experience: I was on Istanbul Airport in Juni 2023 as a layover to Georgië with my Mavic 2 Pro in my carry on backpack. No problem whatsoever! Did not even check it before I went there to be honest, because our flight was re-routed to...