Many people are discussing about  transaction fee on ETH network but no one has mentioned about how to cancel stucked transactions and replace them with a new one. Advantages are you can apply those steps to cancel or replace transactions. Disadvantages are you won't get 100% success rate.

[GUIDE] How to cancel or replace an ETH transaction (Metamask, MEW, MyCrypto)

Some recent articles about fees on ETH network:
https://www.theblockcrypto.com/linked/79452/ethereum-miner-revenue-september-gas-fees

[Analysis] DeFi as the cause of high gas prices