Elder Scrolls and Bethesda games in general do have some pretty significant issues:
1) Plot writing - it's been all over the place in quality over the last 20 years but generally the plots of more recent games have been weaker.
2) Character and dialogue writing, especially for the Main Character.
Likewise this has been all over the place in quality. Morrowind has cool but weird writing, Oblivion's mostly absolutely terrible (as the remake reminds us), FO3's is terrible, Skyrim was a huge jump in dialogue-writing quality from those. FO4 had some good dialogue but also was horrifically self-indulgent and the MC writing was particularly notably bad. Then Starfield is absolutely dreadful, beyond bland, with almost every NPC a cheap and dull stereotype at best, feels like it was written around the same time as Oblivion! None of the improvements we saw in Skyrim/FO4 apparently stuck.
3) Gameplay - You point to stealth and that's definitely a bug issue, and combat is pretty awful too, with numerous first and third-person RPGs showing better ways of doing it, both before and after Skyrim.
FO4 learned a fair bit from shooters about gun-feel, but the melee was not improved, and Starfield showed absolutely no improvement or learning over the 7+ years since FO4. There are just so many games they could draw from at this point, because the whole open-world or semi-open world first and third-person space has absolutely exploded over the last 15 years.
I would definitely like to see an Elder Scrolls-type game but actually good in these areas.