What's going with gas fees? After the London fork, the gas fees only went up. They raised gas limit, and the blocks are half empty, even 5% - 15% filled, but gas fees are through the roof! It's not about limited capacity right now, yet it's very expensive. What is reason for that?
And what is minimum gasused multiplier?
Transaction fees completely depend on users' activity, so I can say that on some days, for example, on Fridays, fees are usually the lowest. I strongly believe that when Ethereum switches to Proof-Of-Stake, fees will not be so huge as validators will not have such big commissions like miners now.
To track current transaction fees you can go on the web-site etherscan. Now the minimum gas is 80 gwei which is about 5,2$.