MBP late 2013 compatibility with Dell Monitor U2718Q

Hi community,

I recently just bought a Dell Monitor U2718Q and am going to use it with my MBP retina late 2013 (which I believe is capable of running 4K resolution). Currently, I am connecting my MBP using Display port to Thunderbolt cable.

My questions are:

• how do we actually use a 4K monitor with our MBP?
  • Obviously when I connect to the monitor with default resolution setting, all the fonts and everything will appear really small. If I choose to bring down the resolution to 1920 x 1018 then there's no need to get a 4K monitor, right?
  • so how do we actually use 4K monitor?
• is it compatible with macOs at all?

  the latest driver that Dell has for this monitor can only be run from Windows machine

• the color quality that I am seeing in the monitor is not that great and it makes my eyes really tired
  • I read some review on LG monitor and how it supports macOs in terms of providing software to calibrate the color
  • can this be done with this Dell monitor?

I mean, I really like this monitor but if it's not compatible with macOs, I might want to refund it and purchase an LG monitor instead to avoid problems in the future.

Thanks!