As always, you should strive to account for any mitigating factors when comparing two things.
If a AAA developer creates a RPG based on a popular franchise and isn't creating a new engine from scratch, then yes I *should* expect it to match the quality of BG3. If Larian could do it, why can't they?
If some indie studio with 12 employees creates a RPG of any kind as their first game, then obviously no I shouldn't expect to match the cinematic/graphical/length/number-of-features as BG3.