You are still on this I see
Do you finally know if you can do without Mac OSX? Only if you know that to be true, then I suggest
visiting this sub-reddit. You will get all the stuff you need to know about these machines.
I personally have a T470. I love the hardware and I believe it is better designed than the MBP 2015 that I have. Great keyboard and user serviceable. I don't like Windows so I have POP OS running on it; this has obvious disadvantages such as lack of quality software. However, since I am using this solely as my development machine, it does not matter at all. I am enjoying coding on this thing...I can type on it for hours and hours. The best part was I got this for 900$ including a 3 year, next day onsite warranty.