Valorant makes pc freeze

So when I play Valorant and have snapchat open at the same time when I alt tab my pc full on freezes and it's not my pcs fault because I have a high end pc and it's not only for me that my game just freezes I also dont know if it is because i alt tab to snapchat i also had it sometimes when i alt tab to valorant tracker. My friend has the same problem so i guess its not just us?