In August there was a good month for mining Bitcoin
This doesn't represent the income stream at all but shows how fees had an impact compared to Ethereum. With a higher price than the pre-halving time, they could leverage the drop.
Bitcoin’s transaction fees grew from roughly 8.5% in July to 10.7% in August, according to a recent report by The Block’s Steven Zhang and Lars Hoffmann.
On the contrary, Ethereum miners generated $285.1 million in revenue last month, marking a 98.2% month-over-month increase — the highest in 25 months.
Notably, transaction fees on Ethereum increased drastically and made up 40.5% of Ethereum miners’ total revenue, compared to 10% in May. In June, bitcoin miners generated $281.6 million in revenue. The block reward halving in May cut the per block subsidy from 12.5 BTC to 6.25 BTC, resulting in a 15-month low for revenue.