Nothing really rouge about it. Google was big on RSS initially as a way to subscribe to content across the web. They had their own RSS Reader after all.
Yet, Chrome added an experimental "Follow" feature in 2021 for RSS subscriptions [1]. Edge did the same calling it "Follow Creators" that mostly focuses on YouTube but also uses RSS [2].
[1] https://blog.chromium.org/2021/05/an-experiment-in-helping-u...
[2] https://www.theverge.com/2022/1/17/22887626/microsoft-edge-y...