Two questions regarding value for value podcasting that I haven't found the answers for - 1 of utility and 2 of curiosity:

1: Are there any web players (or, less likely, Linux desktop ones) that has V4V? I can only find Fountain, which seems to be Android/iOS app only.

2: Where do the sats come from? Is it the podcaster who pays, because we listen to the advertisements, or does the platform somehow benefit from us listening?