I have some very definite opinions on the PGYTech Chest mount for the Osmo Pocket. Check out this video review:

Hello and good day Dennis. Thank you for reaching out and for sharing this accessory review video you have created for the DJI Osmo Pocket. In addition thank you for giving your insight on the pros and cons of the said accessory. I am definitely sure you will be able to hit the 100 subscribers mark. Thank you for your valued support and two thumbs up.

This has been around forever. Plus, if you want less "bounce", when walking, there is the head mount. You'll look a little silly. But, it helps.

Curt, yeah I have one of those. Works fine. Not a fan of the camera being "midships", as it kinda gets in the way of my hands.

Thanks for sharing