Valorant success is based on CSGO since all it is is a downgraded CSGO with OW skills upon that. Really cool for casuals that found CSGO too much of a hassle, easier for CSGO veterans to make a transition but lets be honest.. Its a shameful copycat and that have its cons and pros.
Pros is that is quite lucrative to already establish CSGO players so there you have the "stealing" you talking about. It is because game is CSGO in its core. Also game is far easier and simplier from killing to use smokes/flash, buy, sell, aim, maps navigation , audio, everything is to favor lower skilled players .
And there is the Con im talking about. Game hasnt as much skill involved as in CSGO, is far easier and that makes it decent to play and even worse to watch. Ive seen few pro matches and i rarely see a good spray kill since everyone dies in a sec and most of the times i see a mess in a site i dont even get what is going on with so many skills and shooting etc.
Anyways, CSGO didnt get affected even if Valorant fanboys who by the way are coming from CSGO and that makes it even more disgusting to hate on a game it offered you hunderds of hours of gameplay for a game that is a copycat of that . By August 2018 CSGO population was at 240K if i remember correctly with August 2019 being at 440K . There numbers are before Valorant ... Today as we speak game having 640K. Dying they say..
One other thing i want to mention is that in Valorant i had like 40+ friends i met in beta.. Now i dont see more than 3-4 of them playing Valorant and it is the same people. That proves alot to me because i witnessed a similar situation with Diablo 3. Of course RIOT wont let it go down, it wont end up being anything like Diablo 3 but its a sign that things are not as used to be in beta.
All in all, Valorant tried to make a casual game that will have an e-sport community as well so they mixed two games to achieve that. The problem lies that they copied hard things they shouldnt have. They had to add a new flavor to make it different. Shooting mechanics maybe or something that will make game stand out not feel one of the same and in many cases WORSE than the game they tried to copy hard ( performance, graphics, audio, map design, movement fluidity, mouse fluidity and more )