Well, it depends what kind of content you were doing solo, but there has definitely been some power creep over the years, especially with two more expansions worth of elite specs since LW S3. Events marked "Group Event" are still impossible for me to do alone, but that's by design. Other content can be challenging, but is mostly fine. But of course, this is just my experience.
I'd recommend giving the game another shot with all the new content that has been added, especially the mounts introduced in PoF.
I'm more hyped for this than most other games shown at not-E3 2023. While there was no gameplay, the trailer had the vibe down pat. Excited!