In the market for a tiny camera......

Ok, so we do alot of antique/thrift/instacart shopping and want to start a little vlog about it and want to have a tiny camera to connect to my shirt conspicuously.

I LOVE the size of the Go 3S, but hear a lot about overheating, only running for 100 minutes, etc etc.....

Is the 4 coming out anytime soon, and/or is there a better option?

I do have DJI and Insta360 devices already so I am not opposed going to either route.

Thanks!