I really wanted to run FreeBSD in my T470s and the lack of hardware support pushed me over to Ubuntu. I loved setting up FreeBSD and it felt snappy for a lot of stuff but it would be cool if some of the devs who do live on laptops would just release a package they tune for their particular hardware.
And for the T470s in particular (yes, it's somewhat sparse, and the links suggest a non-ideal amount of effort required, but purportedly it seems to work at the end): https://wiki.freebsd.org/Laptops/Thinkpad_T470s
