The Doom franchise is id software's child, it's glory, it's king-stone.
Except it isn't.
Doom was specifically Carmack & Romero + the other OG id software guys of the time, and the 90's.
It occurs to me that, in computer gaming, we often overlook how products are a direct result of the key personnel which created them. And/or, we mistakenly associate the glory of a success with the brand, and not enough with the actual, particular people and teams.
For example, in film cinema, it's standard to refer to certain movies as "Spielberg" or "Scorsese" or "Nolan" or "Coen Brothers" projects, with the understanding that those people's unique direction and style imbues every frame of the movie - it is "their" work, and when people look for a reason as to why it's great, we simply say... "well, it's a great Spielberg!" for example, and everyone immediately knows what we mean. We don't say "that's a great New Line Cinema", or "a fantastic MGM production".
And so I say with the original Dooms (1 and 2). Those games were great because they are the product of a particular, unique, masterful team of the era. The two Johns, and the rest of the small team which many of us have read about in Masters of Doom. Later games which use the same IP but not the same team, are simply (imo) not even expected to be in the same category. Not to say they can't be good games in their own right!, but they do not have the heritage - the creators! - of the original games, and never will.
Thus comparing Doom to Doom 2016/etc, or even to the still-Carmacking Doom 3, is to me a bit like comparing Jaws to Sharknado and noting "hmm, Sharknado isn't a very authentic Jaws!!". 🤣