I think you're wrong about that? I went and checked Apple's press release [1] to work out which tracker it is, and the Chipolo website for the product [2] says

I think you're wrong about that? I went and checked Apple's press release [1] to work out which tracker it is, and the Chipolo website for the product [2] says "Chipolo ONE Spot works exclusively with the Apple Find My app". To me that implies they've got the same constraint. [1]: https://www.apple.com/newsroom/2021/04/apples-find-my-network-now-offers-new-third-party-finding-experiences/ https://www.apple.com/newsroom/2021/04/apples-find-my-networ... [2]: https://chipolo.net/en-us/pages/chipolo-one-spot https://chipolo.net/en-us/pages/chipolo-one-spot