This is Microsoft Store
In various jobs, AI can do the less important and easier work for you, so you can focus on the more important work. For example, you're doing some kind of research which needs a specific kind of data you have collected, but all of that data is cluttered and messy. AI can sort the data for you, so you can focus on your research instead of spending a lot of your time on sorting the data into something more understandable. Or in programming, AI can write the easy part of a program for you, and you do the harder and more important part, which saves you time.
You can't send voice messages and videos or any type of file except for photos on Briar. I don't have a problem with that myself, but it uses a lot of battery power.