So, for something that works fairly well and is free, can view slide order and show notes in your hand so you don't have to read the screen, Office Remote gets my vote. (2) hope no one calls during the presentation because I'm not sure if it would interupt the screen display on your phone. Not necessarily ideal in every situation, especially if they aren't your machines. The caveat - (1) you need to install on the host machine, then connect via bluetooth. And it even comes with a faux laser pointer effect, just in case you are missing your old pointers fix. Because it is Office remote, I can even forgo a standard presentation and use it preview an Excel sheet - granted not something I've tried to interact with. It's free, I can present slides and with the screen on the phone, it comes in handy to preview the slides and check in the notes.

Alas, I don't have my 950XL anymore, but I do have it installed on my android phone. Buy DinoFire Type C/USB A 2 in 1 Presentation Clicker 100FT Hyperlink Volume Control Wireless Presenter Presentation Remote Powerpoint Clicker for MacBook/HP EliteBook 1050/755 etc. For price and 'ease of use' I would agree the Office Remote works well.

Powerpoint remote for mac