Thief 1+2 really captured the Rogue/Thief character archetype perfectly

I genuinely thought Deus Ex was the future of gaming and we were going to enter a golden age any day now. But that was the golden age.

i want to go back

Dishonored is literally about an op thief/mage/fighter with no downsides.

Specific. Class.

To answer your question, level design is shit now because millennials can't be bothered to figure things out, remember things, experiment or explore.
If you're a child under the age of 25, it's 99% likely that you read strategy guides for games before you even play them, or follow build guides rather than engaging in character customization and figuring out what works yourself. Such people are literally cancerous growths pressed into roughly human shapes, and should kill themselves.
God damn liberals.

Be sad no more! Have you heard of Thief: The Dark Mod? It's a stand alone total conversion of Doom 3 that's basically what Thi4f should have been.

...

Periods. Everywhere.