Need advice on how to deal with an aggresive coworker

There's this coworker who comes off as extremely aggressive during discussions and individual interactions. This is causing a shift in entire team's environment in the wrong direction. Personally this is causing me to avoid getting into discussions with them. I'm looking for ways to deal with this person and keep the work environment peaceful.

Here are some of the observations about their behaviour:

1. Highly opinionated and treat others who have a different opinion as hostile.

2. When someone else is trying to explain something which needs to be explained serially A -> B -> C, and they are interested in C, they get restless and start badgerring with questions about C while the other person is still on A.

3. In discussions, which require a deep understanding of the product, which they do not have yet, instead of admitting that they have doubts and asking questions, they try to act as if they understood it when clearly they didn't because their senior was present. For instance, they paid attention in the beginning and then got busy on their phone during the meeting and when asked if they understood, they just told the agenda of the meeting instead of what was discussed.

4. This is what tipped me off the edge. During a meeting which didn't involve their senior, they got easily frustrated when others were giving an opinion different from theirs and pointing out the issues with their opinion. After a couple of minutes, it turned into a heated argument and they started raising their voice and started making illogical sarcastic remarks. And after a bit of that they changed their tone into rude frustrated disinterest and rudely remarked "do whatever you want to do".

So far we have tried to use humor to deescalate the situation. But this is clearly not gonna work in the long run, and their behaviour is getting worse day by day.

I am trying to avoid a confrontation with them because it is not my place and I don't want it to get ugly.