If we're talking Half-Life2 then one could argue, that it brings in a whole other dimension compared to the two games you mentioned: physics. Something that is almost absent in DE & T2 and has (afaik) no gameplay effect.

Doom Eternal, sure, the original Doom did not have the sort of forced pace that the newer Doom games do

Everyone says its better, but I don't like it as it forces me to play the game their way, not my way

Yeah I think a lot of commenters here are seeing popular gameplay diverge from the gameplay they prefer. I like the gunplay of Half-Life, Quake, etc, and still fire up openarena with some friends every once in a while, but I spend most of my time playing games with different gun models. Right now I'm busy with Hell Let Loose for example, which is about as far as you can get from the arena shooter gunplay model. People looking for gunplay more like 2004 gaming might want to look into boomer shooters instead