Unless you're on the absolute newest stuff with DisplayPort 2.1, HDMI 2.1 has more bandwidth than DP1.4. That'll be Nvidias 2000 through 4000 series. No DisplayPort 2.1 until the RTX 5000s.

And then monitors released during this time generally do the same too.

Also if you want to use it through a capture card, HDMI ones are way more common and cheaper

The vast majority of the TVs only come with HDMI .. not even good enough analog inputs anymore..

Some people have TVs or displays that only use HDMI. I personally wouldn't recommend HDMI if DisplayPort is available, but if HDMI is your only option, then having it work properly will be important.

My monitor has 1 displayport and 2 hdmi and I have 2 computers I use with it. They can't share the displayport. All comparable monitors (last time I checked) have the same. So it'd be nice if both worked.

For one, DisplayPort doesn’t support HDR output