The cat will tell you.

I think thats more of a cat decision then an internet decision. That said, depending how much they want to be out of your arms, giving them a platform to jump from on your arm could result in some desperate breakout attempts.

Omg wait this is not only an opportunity for me to share one of the YouTube videos I quote the most, but it's also a legitimately helpful share! 😄

All you gotta do is squish that cat.

The cat will let you know, either way.

Sir that's a kangaroo

Upvote because I appreciate the MS paint drawing.... and it's a good drawing.... i just noticed the elastic on the waistband...

Most people would have used AI in this situation.

Can we get an actual photo of cat?

I hold one of my cats this way. He loves it. He will, however, launch himself to a nearby landing spot very suddenly when he’s had enough. Which is also what makes this a good way of holding him, since it allows that freedom.

Supporting the feet can be helpful for cats who are nervous being held

My cat is not a fan of being held but that's the way he tolerates it the most

I don't see anything wrong with it. Looks supported. Every cat I've had who doesn't mind being carried climbs onto my shoulder, though.

Caillou asks

A lot of cats do that when I pick them up. A lot of times I’ll adjust my grip and flip them over a cradle them like a baby. No cat has taken issue with it yet.

I've had two cats who loved this and would hang out in my arms as long as I could hold them, and I've had one that hates it and would rather I just let his rear legs dangle awkwardly.

Claws?

I agree with everyone who says it's cat dependent with a lot of variation. My cat's favorite way of being held is for me to stick my arm through both sets of legs from behind so she's straddling my forearm, and my hand is holding her chest below her neck. She'll happily sit like that for ages, especially if I'm moving around and she can watch the scenery.

A prior cat preferred to be held like a baby, on his back cradled in our arms, but my current cat hates that.

it's a good way to start. gives them a lot of control

if you're training to hold them then don't let them jump, slowly lower them and hold them until they touch the ground

then a treat maybe

I used to hold my cats this way, normally their preferred way.

I also liked holding their back paws while doing this, and give them a hug.

Or I would hold them like a baby.

My only suggestion is to try to get their front paws above your elbow so that you can you use that arm to (gently, of course) hold them to your chest. Overall though, if the cat's weight is being supported by their feet and they're not falling off, you're all good!