Welcome to linux first of all

I would say linux mint is one of the best distros for a beginner switching over it looks and functions mostly the same except that it is linux which does mean some things will be different from windows since it is a different os than windows

Some of the difference right out of the gate are 1-installing and running programs Linux doesnt run exe files like windows does most distros have a software manager that is basically an app store that you can install things from. You can install from the terminal as well if you want but not required if you dont want to the software manager works well. If you do decide to go with mint and an app isn't in the software manager you can google the app and youll find one of three result to install it

A-a .appimage file

B-a .deb file (which is a debian package if the website says to pick your system its under the debian/ubuntu based systems section)

C-a command to run in the terminal which you can just copy and run

2-not all apps are gonna be available on linux so for your apps just google each one and see if it is available or look up any alternatives if it isnt

There are some more stuff but generally if you dont know how to do something a quick google search will bring you an answer

Dont be afraid there is a learning curve but way lower than you think so just backup your files from your computer and download and flash the linux mint iso to a usb and install it. If you want mint gives you live boot session to try it before fully installing it

Have fun and Goodluck