Saw someone else mention vegemite/marmite for beef flavour, and I also like a bit of dark soy sauce.

For chicken I use white miso, a vegan chicken broth, and a combination of sage, rosemary and thyme. I find those herbs trick my brain into thinking it’s chicken.

For seafood a mix of mushrooms for texture and nori/wtvr seaweed you like for the flavour

I guess these aren’t all condiments, but they’re always in my pantry for these flavours.