I think the problem being they rely on very large numbers of others in the same ecosystem - so Apple Airtag takes the lead. Then you've lessers like Tile and the Galaxy SmartTag.
I've certainly read plenty of stories where airtags have helped people locate luggage or be comfortable it's making the journey with them. I've read pretty much nothing about the competitors.
I'm also Android and I'd certainly like to have the option when travelling with bike, but it's needs to be worthwhile. I might give the SmartTag a try as my phone is a Galaxy, but I can't tell if it requires the anonymous phones out there to be running the app also, reviews aren't clear on that.