This is an issue specifically with OCE, but there is a lot of ambiguity with 3v3 as to whether it's ranked or normal.
On EUWE, you have the option to choose either & you can clearly see the two, but on OCE it's time-based, which is fine, but the issue is you don't know the gamemode until you create your lobby.
Which is problematic, because you have people trying to play Ranked & have people joining to "try it out" & "just for fun" because they didn't notice it was ranked.
Even my friends of whom I invited to play didn't realise it was ranked.
If when selecting the gamemode, there was a visible specification of whether it was normal or ranked, it would be very useful.
I am sure this isn't an issue at higher elo, but at lower elo it is very apparent.