Those transaction cost estimates are extremely volatile. I recently tried to pay 50 sat/vB (~$4) for a transaction on a Monday and it didn’t clear until Saturda

Those transaction cost estimates are extremely volatile. I recently tried to pay 50 sat/vB (~$4) for a transaction on a Monday and it didn’t clear until Saturday. Unfortunately mempool.space doesn’t seem to publish historical data, but it seems that weekends do affect Bitcoin, in that transactions are significantly cheaper.