If the ads for a feed are in a predictable position (like first two minutes, last minute, whatever) one can use sox or similar to trim the file at that point to effectively remove the ads.
But like some of the other commenters here, when the podcast is available by patreon I use that feed and avoid the whole problem.
I had a good experience with jekyll's wordpress->jekyll import tool. But see below.
Graybeard here, so it's probably just braindamage specific to me, but I've found ruby dependency setup and troubleshooting to be extremely frustrating. Hard for me to wrap my head around.
When jekyll is actually dead (right now it is "only mostly dead") I'll change to something that does not require ruby (eleventy?) or just go back to the nineties and do something barebones with gtml or whatever. Already playing with the latter.