They have killed old.reddit now. It forces you (or at least me) to login. Same with regular Reddit. Most threads I get an authwall after the top comment.
I use proxy software like redlib and teddit. The browser extension LibRedirect[1] makes these easy to use without conscious thought. They're read-only, but if you were going to post something, you'd have to sign in anyway.
(Im now entirely on HN and Lemmy)