-snip-
Some of cases like this are CPFP (
Child-Pays-For-Parent) transaction.
Being mined at the same block and the child transaction having higher fee rate the parent indicated that it's that kind of transaction.
For those who are not familiar with CPFP, it's kind of a transaction bumping technique which spends the output of an unconfirmed transaction with higher fee to "
bundle" their total fee and size together.
Essentially increasing the overall fee rate of the parent and child transactions.
However, none of the transactions in the OP are CPFP.
If not (
un)intentionally set, those are probably "
premium withdrawals" from a centralized exchange, wallet or casino.