Welcome to the forums,
Personally, I have found Lenovo no more difficult than any other pad to install Linux to. All make have their idiosyncrasies,
with over 500 different distributions, many for specific uses, there is no such thing as the best distribution, only what is best for you, the world is your Oyster as they say,
As a newbie to Linux, my suggestion is that you use one of the main stream builds, which include non-free drivers for ease of installation. Before you make a final choice, try running five or six different ones, with different desk tops "live" from a pen-drive to see which you like the look and feel of the best and feel most comfortable with, then you can install it,
https://distrowatch.com/ list the current top 100 distributions
take your time