Do you leave the props on when you store it in the bag? I have been and it doesn't seem to be an issue? What say you!?

Yep - no issues

I leave them on while storing it in my GPC case.

I do.
No problem if you make sure that they are not squished or bent.

Mirek

I only take the off to clean them.

I put props on when I first got my Mavic Air 2 and they haven't come off since.

Same here. Mine stay on.

It is recommended to remove the propellers when store in the bag, if you leave it on, please double check the propellers' status before each flight. Please replace timely when it is damaged, chipped or bent.

I do not remove mine when carried in my hard case. Checking the props is a part of my pre-flight routine. If I plan to leave it at home for a few days, I will set it, unfolded, on my counter.

I remove mine every time and store separately in my bag. Not essential but it’s part of my pack-away routine.

Just bought this...I'll get it in a couple of days. I wanted something to keep the props from flopping or snagging on something. There is some concern this strap puts some pressure on the props versus just holding them in place.  I'll let you all know when I get it.  

I like these better because they just hold the props in place...but shipping won't get them to me (in US) until Aug 11 -Sep 1...that's too long for me.         I want something to keep the props from flopping or snagging on something.