Since the nerf to his tp it feels like chamber isn’t great as usual on all maps. Bind is really the only map where I can use the credit card properly. Any other maps and locations for tp if possible?

I just started playing valorant after playing csgo for a long time. In CSGO about 4/5 people have and use a mic in comp. In valorant its 2/5. Why is this? Why queue comp without a mic?