We're not there yet, but the latest AR glasses like the XREAL One and Lenovo Legion Glasses offer 1080p resolution. It's not retina-quality text, but it's like the workspace of a standard computer monitor, at a large size and at a considerable distance away.
1080p is not nearly enough. You basically have to create sufficiently high resolution on a relatively small fraction of the image sensor. Even 4K is not enough for that (see e.g. Apple Vision Pro).
Yeah, it’s not a large workspace by any means. But it is still usable. And, it’s larger than what we had with monitors in the 90s and early 2000s.