I think it depends on what action lead to the tantrum, we never ignore, but we never give in either. I tend to not touch her when she’s in that moment but talk to her and try to explain what I think is going on, ask questions to help me determine why she’s upset. Then ask if she needs a cuddle, which 99% of the time she does. Most of the time she calms down pretty fast and she’s mostly having tantrums when she’s hungry or tired.
My son does this but I think it depends what the tantrum is for. Often it's because I've taken something away from him because e.g. the remote. And if that's the case, I can eventually distract him with something else. If it happens otherwise, it's usually because he wants something so I try and ask/give him options. He can nod and shake his head now so it's easier to determine what he wants x
We don't ignore because I don't want him to feel like we are ignoring his feelings. It depends what the tantrum is about, at this age its best to comfort and distract. When they are older you can explain and name the feeling, so they can learn to communicate how they feel. They mainly tantrum at this age because they can't say what they want and they don't understand why they can't have it x