help me

Can someone explain to me how the leagues will work?
Will it be like in the past with a phrase of groups and then playoffs or will it be like in football where all the teams play against each other and the one with the most points wins

Here: https://www.vlr.gg/event/1458/challengers-league-north-america/split-1

See the chart, it shows some red boxes and some green boxes (the red boxes being the last 2 teams). They represent if a team will make it or not, and is determined by their wins/losses/ round differential.

So, if a team lost all their matches, they'd be in the last red box (worst performance), if they win it all, the top green one (best performance).

The 2 bottom teams will not move to the next stage -- the top 4 teams will move on to the next stage.

Its spilt into 2 groups currently (A and B).