From my experience, the first 3 minutes are more critical than ever now.
I used to be able to play for 10 minutes and make a few mistakes and catch my opponent in a mistake and still have a chance to catch up.
Now, if the other team gets ahead 3 or 4 kills and if my lane gets ganked, there is almost no chance that I can ever catch up.
Especially when I play ADC.
At this point, about 5 minutes in, the game is over for me. It will take 30 minutes of farming and getting flamed to be able to get a few items and contribute.
Once I get sick of listening to all the toxic flaming shit about not going to team fight, I go to the team fight, they all run behind me. Being immobile adc, I get CCed and killed.
So what's the point of even going?
The snowball bullshit is so bad, that if I get 10 cs or 2 kills behind, they push up and gank, kill me and the lane is lost and they will get one or two towers before I can even get back to lane, then they go destroy mid with rift herald and the 4 dragons they have.
And I am maybe 1/2/4 at this point, but it is alllllll my fault.
If I have a good support, and we hold bot lane, then we get the 4 man gank and get run over and they take the tower and all go mid, same result.
If I win bot, AND mid wins and roams AND top wins AND jung just doesn't totally fuck up, then we might slowly win. But even then the real risk of throwing the game is ever present.
Right now, I might lose 5 in a row then win 1 or 2, then lose some more.
So to your point, recent changes and all the snowball bullshit champs make it so there is not much to do when it takes 1 sec to die and then I wait 20 sec and then they do it again.
Just the farm you miss when dead as an adc means 3 death at 5 minutes ends your game. I do my best up to the 3rd death. IF I am 0/3 then that's it, I'm done.
There is no late game anymore, it is all decided at 3 to 5 minutes. I already know if we have a chance to win or not at 3 minutes.
After 5 minutes it is more obvious.
At 10 to 12 minutes even the stupid people can see it. But they still wont FF at 15.
The worst thing is when they are winning lane and think they can carry but we only have 2 or 3 towers left and we slowly lose over 30 minutes.
So yes, when I see it going the wrong way, I just farm and try not to die. I already know we lost and no I don't really care.
I can't care. Back when I was trying my best and people were feeding and throwing I got all tilted and eventually got banned. All that work gone. So now I don't give a shit at all about this game. I play to waste time. Do the win of the day and maybe 2 more and done.