And just 4 hours alter the mempool still has 14Mb and the last block minimal fee was 12sat/vb
Again, it's a different situation than the one at the end of September, there was no rush to then to send transactions, there was no continuous spike in fees.
You can see that the previous spikes have not caused anything remarkable on the fees, just slight variations, these one is a bit more serious, the first one in months.
Not that the weekend isn't going to clear it up but still, it's different.
You can start from here
https://bitinfocharts.com/bitcoin/address/1NDyJtNTjmwk5xPNhjgAMu4HDHigtobu1s
This is Binance's known address for withdrawals, if anything has changed in the pattern of usage it must be here.