Uber Logistics & Distribution PM interview questions

Applied & 4 wks later get notified of having a phone screening. Call goes really well and excited. Told next steps which are complete an exercise well email to you and if we approve you get a phone interview with potential boss. Receive email and it’s a full on work assignment to be done in power point. Mind you I have a chrome book. Not Microsoft and am not shelling out $50 on it or finding a friend who already has this installed etc. Decided to send an email off questioning why the need for a presentation when I’m not even at the final interview round etc.