Bethesda has always been known for its abysmal lack of care about quality. Morrowind (2002) is riddled with bugs, a lot of them game breaking. They're all listed on the wiki, each article having several of them, with steps to resolve them using console commands (which you are expected to use if you want to finish the game).
Obviously, but I was responding to OP's claim that Bethesda's games took a dip in the quality department, by underlining that they were always infamous for putting out rushed games riddled with bugs.