I just found out the chain was scanned a few hours ago and I didn't manage to withdraw my coins
It's a fork, not a "scan".
You can't call it a fork without a working wallet. The chain was captured yesterday, it was scanned.
It's a fork if it carries over the chain and the first block of "B2X" is built on top of Bitcoin's block #501,451
(thus the hash pointer in the block header references that block).
A scan as an airdrop with a completely new chain would do it doesn't carry over blocks, it only carries over balances.
Forks and airdrop scans are different, "B2X" advertises itself as fork, thus I call it one.