Outlook question, I need help

[Paper Roses]

4. HI, thanks. THere are no directions, just the blue screen with options.

I am a simple user, all important email goes to a Comcast account. The Hotmail(outlook) is just for "stuff".
I checked all the options and there is nothing mentioned about system...or anything else.
Just
Here it is, do it. It gives only the option of downloading MS365 or Outlook.
Then: Download..obviously I want Outlook but don't know what I face after that..
If I hit the Outlook option, if it is complicated, I am in trouble.
Anyone else use outlook on Windows 10?
I can wait until next October to upgrade to Win 11. This old computer gets very little use. 2 email accounts, I use the internet and have about a dozen Documents. Plenty of room for something else, I just don't know what to do.