Rehearse the questions they will actually ask.

Four things: walk me through your background, why this job, tell me about something hard, and what do you want to ask us. Prepare those and you've covered most of a first conversation. People waste the last one.

Name a real one and say what you do about it. They're asking whether you can look at yourself honestly, so "I work too hard" fails on the spot. Pick something true, not central to the job, and describe the actual thing you do to manage it.

Things only this person can tell you. What the first ninety days look like. What would make someone fail here. Why the role's open. Skip anything the careers page answers, asking it just proves you didn't read it.

Yes, and on a video call they expect it. Your questions and a few numbers you don't want to fumble is preparation. Reading your answers off the page is the bit to avoid.

Yes, and it saves everyone time. Ask what the role is budgeted for rather than naming your own figure. In a lot of places they have to tell you anyway.

Enough to say why them specifically, and to ask one question that shows you got it. What they sell, who buys it, who they're up against, anything they just announced. An hour does it. Learning the exec team's names isn't the point.