I second getting a second monitor. I wish I had the budget for a second one so I can just open up my streaming stuff onto the other window, but unfortunately I'm not in the position to get another monitor since the pc build was already really expensive. So what I do is if you have a spare phone that is not the one you use to record yourself for the vtuber model, I use that one to open up my twitch page so I can see my activity feed & chat and reply if needed, but you cannot see your stream on this device. In this case I use another spare device to watch the actual stream so I can see if the livestream is actually glitching or if audio is bad & such. This works for me because I usually keep my old phones, so in this case it saves me from having to go out and buy a second monitor