I'm sure this post has been made before, but I feel like it needs to be discussed again.
The number of times I've seen teammates get destroyed because they are thirsting people is astronomical. Same goes for the number of times I've easily clapped somebody because they were focused on thirsting my teammate.
Focus on the people that are alive. The ones crawling on the ground can't hurt you. Worry about the ones that can.
Thirsting SHOULD be very situational. Like, if you need their loot, or their teammates are a mile away. When you know their teammate is pushing you, stop trying to thirst. Focus on the door their coming through/the direction they are pushing you from.
This should be even more obvious in ranked, but I can at least understand the temptation to get the RP. In pubs, it makes zero sense.
Source: https://www.reddit.com/r/apexlegends/comments/gymndt/psa_stop_thirsting_people/