An Android eink device would solve this problem. I'd like recommendations.

A majority of the feeds I subscribe to do not include the full text in the feed themselves which is one of the main reasons I use Miniflux which has an option to fetch the full article text and works very reliably. Of the more than 150 feeds I am subscribed to, I think there are fewer than 5 that Miniflux is unable to fetch the text for. Miniflux can also connect to Wallabag to quickly save pages to it using the full text. That is great because Wallabag is often unable to fetch text directly on its own.

One way to get around this in some cases is to subscribe to the feed's associated email newsletter, which, IME, is more likely to have the full text of the article. This, of course, introduces other problems[1], but if your goal is to remove reasons to habitually look at your phone, it's worth investigating.

[1] The feed needs to have a newsletter in the first place, you probably need to clean up the markdown a bit before shoving it into an epub (I've noticed that table-based layouts are much more common, for instance), and your email provider probably doesn't provide an RSS feed of your inbox. The latter two are straightforward to fix but do require a bit of programming elbow grease.

I built a RSS feed hydrator just for this. It grabs the basic feed and adds whatever I need to it.

Then it generates a new one that I subscribe to on my feed reader.

The really annoying ones are substack as it often wants you to sign in to access even free full text posts.

I really like the idea of reading blogs on my Kindle, so I built https://inkfeed.xyz

It's a web-based RSS reader optimized for e-ink devices (especially Kindles) that allows you to read blogs online via the Kindle browser, and download the blogs (directly on your Kindle or email it to your Kindle email).

And it does support fetching the full article using Mozilla's readability package!

Please try it and let me know what you think!