If you had told me ten years ago that I would still be using Outlook (on desktop and mobile) I would not have believed you. It’s way more stable than it was back then and honestly it’s the mail client that I find least objectionable.
Used that for damn near 15 years before I was just like “I really don’t check my email enough to even warrant having a client installed on my desktop.”
What's hilarious is the home version of office was almost wholly incompatible with flagship Office... even down to the doc types.... the icing, it was called 'Microsoft Works'... a truly terrible product