Yep, that's an action cam seemingly floating on this rider's jersey it's actually thanks to Insta360's magnetic mounting system that has made it onto the tiny GO 3 camera, plus there's also increased battery life and higher screen resolution
Can The New Insta360 Go 3 Be Your Motovlogging Companion?
Insta360 GO 2 creates world's smallest stabilized, waterproof action camera - Bikerumor
Insta360 GO 3 action camera review - Amateur Photographer
Secure double-locking system for worry-free use. Quick and convenient to mount or dismount. Easily change between accessories with a 1/4 screw mount and 2-prong mount connection.
Insta360 Go 3 Quick Release Mount
Review / Insta360 GO 3: Versatility Gets Small - Adventure Rider
Insta360 Go 3 Review
GoPro Hero11 Action Camera Black - CHDHX-111-TH
Insta360 Go 3 Review
Insta360 GO 2 Action Camera Release
New Insta360 thumb-sized camera arrives next week — is it GO 3?
Insta360 GO 3 – Compact and Lightweight Action Thumb Camera, Portable and Multifunctional, POV, Install Anywhere, Stable - AliExpress
Insta360 Go 3 review: The smallest camera gets some big upgrades
Insta360 Launches GO 3 Action Camera