If you want to migrate to Linux, I would strongly suggest you set up a dual boot, and start playing with it to gain experience. Being able to switch back to something you know is a massive benefit when you are still learning.
While Linux has come a very long way, you are sure to experience some hitches along the way. If not because of Linux itself, then because you are not familiar with how to do “that one thing” on Linux.
Mittens take away too much dexterity for many things. But a 3-finger glove is the perfect compromise: https://www.snowsportprofessionals.com/wp-content/uploads/2017/11/8272aca90cb09ec2c85ef324e10933f57f500daf.jpg