I have skimmed the post but some of the things are not minimalism, but replacement of delivery mechanisms. On the other hand I'm also doing something similar in my digital life.

I have reduced my social media to two sites: Here and Mastodon (with a very limited follow circle). I don't follow tons of ad-ridden websites. I have a self-hosted RSS reader, following 10 feeds. Instead of following junk tech news, I read LWN.

Next step might be enabling antiproc on HN to reduce my time here, since I added time limits on applications on my phone and love that artificial limit.

I have limited energy and I want to focus it instead of spreading it around. Otherwise progressing beyond a certain point becomes impossible.