[SOLVED] Do I need a 4K HDMI cable even if my monitor is not 4k?

Solution
There are newer specifications every year as monitors get higher and higher resolutions. See below, I recently had to upgrade to a newer HDMI 2.1 cable when I hooked up to an UHD 4K Oled TV, had glitches in video while the old TV had no trouble at 4K
https://www.hdmi.org/spec/index
And your answer is No, unless you have trouble.