I was musing on this last night. I was watching a youtube streamer, who has about 1500 videos each about 30-120 minutes, and in his more recent videos (compared to the earliest) he has a nice desk microphone, a better camera, and his introduction style sounds more fluent and confident.
I accidentally clicked on an older video, and while the main stream (the game being streamed) is identical in quality, the difference in video and sound quality of his voice/inlaid video of himself is very noticeable, and makes a big difference to the overall quality of the stream.
I was thinking therefore that it's likely that if you have a nice camera and microphone, then it's going to create an immediate better impression than if you are using just whatever your laptop comes with.
Funny you mention that, actually. I used to stream on Twitch, so I have the whole setup and am comfortable recording myself! Whenever I attend online firm events, I always look and sound better than their representatives 🤣 I never understood why they don't have better equipment. Or lecturers, for that matter (shout out covid university). The only issue is that your quality will be reduced depending on what video interview system you have to go through, so it might not end up as nice as you'd have hoped. It should still be noticeably better, though!