Cannot find info anywhere, but is the dungeon finder for older expansions still heavily limited from level 50+?

Wondering if the dungeon options from levels 50-59 are still limited. I know this has been an issue ever since 10.0 but I’ve come back after a break and wondering if this is still the case.

For example, at level 49, every Classic dungeon is queueable in Chromie time but once I hit 50 the only dungeons available are the level 10 dungeons (RFC-Stocks IIRC).

I’m wondering if Blizz ever fixed this issue.