I had not heard about Fractal Bitcoin until today. It is apparently a Layer 2 launched by Unisat, which is a wallet for tokens on the Bitcoin blockchain. Since it is a merge mined sidechain, the hashrate never leaves the BTC main network.
Somebody made a fork of mempool.space for Fractal BTC and you can see which are the top pools right now. Currently, around 30% of the BTC hashrate is also mining on this sidechain.
https://mempool.fractalbitcoin.io/graphs/mining/pools#24hFrom what I read, this L2 has its own native token, which is 50% premined, so it looks more like a scam that is trying to associate itself with Bitcoin through marketing, rather than being a serious scaling solution.
If this is true that Fractal Bitcoin looks like a scam then all Bitcoin Layer 2 are scams, unfortunately, they are not, I think you should do more research on this project before calling it a scam, I've done mine and yes the token might lose value big time but it is far from scam, maybe you can later drop what you feel after you've done the needful.
I think this is a good opportunity for anyone with outdated Asic miner sitting around, it won't hurt to mine some of this coin, maybe who knows? Even Bitcoin cash gave good profits when it was new few years ago, although I hated it but it is a good way to get more Bitcoin.
Just mine and sell for Bitcoin when price appreciates, nothing more nothing less.