Why does Google Analytics count website clicks as direct traffic?

Question

Google Analytics

Hello. Maybe someone can help me figure out this strange situation. I usually use the metrics, but here I had to fasten a Google counter for one foreign site, because it does not accept others. So, there are quite the usual links to the landing page where the counter is, for example, like here: https://www.steamgifts.com/giveaway/yiDpU/darkstone
I click on the link, get to the game page, go to the analytics and what do I see? And "in real time", and in all other reports, my transition from some kind of fright is taken into account as direct, i.e. direct traffic, as if I had typed the address directly into the address bar. And accordingly, I can’t see what return I received in the end, filter, etc., these transitions. What's wrong? This is a link from another site, why doesn't it show anywhere that the source is actually steamgifts.com? Can this be fixed somehow?
Moreover, he sees exactly the same links from reddit as referral, and takes them into account correctly. Truth on social media. I apparently do not understand something at all.
UPD: No replies. Really nobody faced? This is the most banal functionality of any counter. Or does it work for everyone, but not for me, so no one understands what it is about? =)

Answer 1

use utm tags
with https everything can be

Answer 2

Perhaps the grouping of channels by default in the account is not correctly configured. This can be checked by going to Admin - View - Channel Group tab prntscr.com/ewbs1n Select Direct, should be like this prntscr.com/ewbsbn
It could also be that GA will change the traffic source when it has processed all the data for 24 hours.