Just bookmark a multireddit url, ala: https://teddit.net/r/mud+dcss+cataclysmdda (in this thread I show you teddit, another privacy focused frontend)
teddit does actually have a subscription concept, accountless, but in general the multireddit solution would work for your libreddit example
Teddit is a free and open source alternative Reddit front-end focused on privacy.
Teddit doesn't require you to have JavaScript enabled in your browser.
The source is available on Codeberg at https://codeberg.org/teddit/teddit.
No JavaScript or ads
All requests go through the backend, client never talks to Reddit
Prevents Reddit from tracking your IP or JavaScript fingerprint
Lightweight (teddit frontpage: ~30 HTTP requests with ~270 KB of data downloaded vs. Reddit frontpage: ~190 HTTP requests with ~24 MB)