Is it worth the time to grind non-tz regular zones?

Where and why?

same as before, for same reasons as before.

After getting far % in chronicle, always doing TZ, i think i may have to play in not TZ zones to find low level uniques and sets. It's been days since i have all high level sets, but i miss A LOT of low ones. So that could be a reason to work on them.

Chaos skanctuary is my go to when the terror zone is something whack. Because I was there when griffons eye was introduced and im yet to find one myself

Cows are still good for farming runes
Chaos sanctuary and Worldstone keep too

P5-p8 farm any lvl 85 area. Lower player count will be real slow but progress is progress

no

tz gives more xp, better drops and scales with your level

only reason to run non-tz is if you need something specific (keys, bases, certain bosses) or you just prefer the map

for general farming / progression it’s just less efficient