The fee that matters is the one your workflow actually triggers
Market orders usually put you in the taker bucket. Resting limit orders usually put you in the maker bucket.
That is why two traders can use the same exchange and still pay very different fees. The fee page is the same. The workflow is not.
- Market-order-heavy trading usually makes taker pricing the first thing to compare.
- Passive execution usually makes maker pricing more relevant.
- A discount only helps after you know which fee bucket you live in most often.