[cactusmatt]

Not at all. Most sites support RSS. There are still people (myself included) that consume most of their web content via RSS.

[scep12]

Is that really "widespread/mainstream" though? Podcasts listening is pretty huge; in the US "38% of those age 12+ in the U.S. are monthly podcast listeners" (ref: https://www.edisonresearch.com/the-infinite-dial-2022/)