If there was an option while in-game to switch agents with one of the other 4 agents on your team, would you?

I took a really long break from valorant, and was with some friends when someone said “yeah there’s this agent now with a penguin guy that can plant spike” and i was like ???? you’re absolutely fucking with me I was crying laughing when I...

So I went to bed a Silver 3. I woke up and my Rank is now Gold 2. Even my Act 3 triangle shows I won multiple Gold 2 matches. I have never played any Gold 2 matches. Is this normal? My match history only shows Silver 3 matches.