Antennapod is highly underrated, even among Foss community. I have been enjoying it for 6 years and never cared for alt.
Of course it has yearly summary feature, along with hour counts etc.
I used to run Reborn OS at around 2017 for a few years. It used Cnchi installer, just like Antergos, and when Antergos died, I saw Reborn as its successor. But the title went to Endeavour (why?) and Reborn never got popularity.
You are assuming a fair distribution of watch time over channels and/or over the viewers. In reality, some channels are highly popular and some are not. A few proportion of people pay for yt premium. Assuming the payer's money get distributed equally to creators, the less popular channels get less amount from those payers. The question is, does google distribute the paid money according to each user's view?