I think it's not yet quite popular on some bookies from this forum I tried to look each one of them and most of they offer is just Counter Strike. or maybe I just missed it if someone knows any bookie that comes from forum please share it here
Maybe it will not be popular now, but who knows, that game will get its fan from time to time. I do not know about Valorant either, and I do not play Counter Strike too, but knowing that a game can be used for betting will be good for the gamblers because they will have more game options gamble.
I see on the thread about the site to betting valorant, but it seems the site is an error and not online again. But I think if people want to make a bet, they can follow what @Lanatsa said about loot.bet because I can see on that site, valorant game is available.