I think Skyrim is the worst thing that happened to Bugthesda from a creative standpoint, because with the huge success of that game they learned that streamlining and/or dumbing down their games = profit! And while Skyrim is a very fun game, it can't be described as an RPG. It's more of an action adventure theme park. The main quest is almost scientifically designed to introduce you to every guild and faction, like going to the theme park and riding on every attraction. And all of the Daedric artifacts, the game practically begs you to take, instead of hiding them in shrines all across the map and needing to figure out what offering to make like in Oblivion.
You can see this design philosophy taking root in Fallout 4, all of the RPG-ey elements like story, dialog, and character traits being cut to the bone and replaced with combat and junk hoarding. It's this point where the rot is starting to take hold, like aping the dialog tree from Mass Effect and the building from Minecraft, not understanding why those mechanics worked in their respective games. It's at this point Bugthesda stopped being innovators, and have become imitators. Also F4 just feels "sloppier" in both detail and technically than Skyrim, ironic considering Skyrim was the game that was rushed. Details like items being removed from storekeeper's shelves when you buy them or telling the Whiterun court mage that's he's burning his potion if your alchemy skill is high enough, little details like these don't exist in F4.
Now we come to Fallout 76. The bones that were left over with F4 being boiled down to a thin, flavorless broth and left with a game so buggy and uninteresting it makes Fallout 4 look like The Witcher 3. Now they're ripping off Rust, a game that was popular 5 years ago! I just wonder what trend or game they're gonna rip off with Starfield, which is a game I'm excited for, and I'll tell you why. If Bugthesda gets their shit together and they make a fun, genre-redefining game you can sink hundreds of hours playing I'll have fun, but if it turns out to be a total and utter fuckin' shitshow I'll have fun talking garbage about it!