Top players not buying lost chapter - how?

Just scanned through the top 5 players on opgg asol in Korea China euw and 70% of them don’t go lost chapter and some only get it sometime. They don’t go tear either.

So how do they deal with the lane, mana issues, roaming? Pushing for roams? Etc.?

Anyone at master or above can give me some Hints? It wouldn’t work at all with my PlayStyle.