There is no PC version, but (mobile) is free on iOS/Android. You can play this on PC via an emulator like BlueStacks .
If you choose the emulation route for Battle Zero , here is what the game offers: beyblade burst battle zero pc download free
Since the game was a console exclusive, any "free PC download" you find online is likely for an emulator or a potentially unsafe third-party site. There is no PC version, but (mobile) is free on iOS/Android