As of block 788541 the #bitcoin mempool contains about 321,572 unconfirmed transactions.
An estimated 251,179 transactions or ~78% appear to be related to ordinals, filling over 38% of the total mempool storage space.
--
total #mempool size: 151 MvB
ord transactions size: ~58 MvB
addtl. miner fees: 0 sats