Litmus Test – Looking For An ETH Equivalent BTC Blockchain Explorer

I'm seeing websites/posts making blockdata claims on ETH vs BTC, yet I can't find where to explore the blockchain myself on BTC.

For ETH I found sites like https://etherscan.io/accounts and https://beaconcha.in/charts yet I can't find similar for BTC.

Where do you explore blockchain data for BTC? I can't find an equivalent.