If memory serves me correctly, freebitco.in has it's own pool, or miners, or something along those lines?? Perhaps they should be processing their own transactions if/when they find a block. Might come in useful at times such as these.
Another mempool monitor can be found here:
https://mempool.space/our bitcoin mining operation (which is currently 9.065Petahashes or 0.007% of the total hashpower of the bitcoin network).
They say they got 9 petahashes but it is probably outdated information.
Right now slow withdrawals take 9k sats, and instant withdrawals are 38k sats which is not cheap. If I am not mistaken it was a few hundred sats for slow withdrawals few days ago.