old.reddit.com works very poorly on mobile.

There used to be i.reddit.com, for that purpose, but they removed it a month ago or so… I wonder how long old.reddit.com will remain.

If you don't care about logging into Reddit, you can try Libreddit or Teddit as read-only frontends. Bonus is you can use them without JS if that's a concern to you. Libreddit especially works better on mobile IMO

Of course these will probably only work until reddit changes their API, as they announced recently

Well, I don't want to sound too cynical, but the whole internet works poorly on mobile.

Users have less control over their OS and browser so the experience is much shittier even if you ignore styling which isn't sized for mobile.

on mobile I use "Reddit is fun" app and I gotta say its actually better to browse than old reddit on PC