Let's be real, a lot of Valorant pro games are filled with fundamental mistakes which cost games. Players know these are things they shouldn't do but we see them again and again. The first team to get these things in order will probably be the best team for a long time.
- unnecessary peeks/fights (PRX loses important games due to this)
- executing without taking space anywhere else
- trying to take space without support or a distraction (ange1)
- not giving the plant to the agent who needs ult (FNC lost the last round of lotus vs TH because of this)
- bad comms or lack of comms (100t)
- using a vandal as a controller or cypher (gets on my damn nerves)
Probably more to add to the list but you get the idea.