Provide more information on estimation transaction costs

[m-e-m-f-i-s-19]

Describe the bug

Lack of information on how to estimate transaction costs since the Linea is L2. This https://docs.linea.build/developers/guides/gas/gas-fees is not enough. Transactions not submitted or wait too long.

Steps to reproduce

Formula: gasPrice * estimatedGasUsed (neither eth_estimateGas or linea_estimateGas) often doesn't work.

Expected behavior

More detailed description or example how to calculate transaction costs. Provide accurate formula and the data sources for the formula parameters. Eg.:
txFee = gasPrice * estimatedGasUsed
gasPrice - pick from eth_gasPrice or gasPrice = l2GasPrice + baseFee etc
estimatedGasUsed - pick from eth_estimateGas or linea_estimateGas
or something like that.

Link

No response