So I'm thinking about the Webtoon Flow. (Spoilers for the ending)
Look. This is also something I've read years ago. The ending? Bittersweet... oh how bittersweet. There is a special place in my tear ducts for a "wiped memories/unrealized hero" sort of ending. Where the MC is either never recognized or is wiped from all prevalent memories. Flow is the latter... All those good times? Gone. All those memories? Basically never happened. Included in these would be like Life is Strange, because ***SPOILERS*** there is an ending in which, instead of saving her at the beginning of the game (which sets off the events of the whole game), Max let's Chloe get k*lled from the very first moment Max originally saves her in the bathroom. This is because she was basically destined to die there and doing so would save the rest of the town from a storm. But this is at the end of the game! You literally see all the memories get burned away because they no longer happened in the timeline! It is so sad. But! This is about Flow.
Flow was a shorter Webtoon, at least compared to the beasts of Webtoons that can go up to 400+ chapters. It was a compact experience but it was still able to get me to feel bad at the end. It just hits different when all the MC's friends and love interest just don't recognize or remember him. It's sad :(
However, I suppose the solace I can take is that at least the MC exists again! That is already an upgrade from just not even existing anymore... therefore the possibility of connecting is not lost, just changed.
As for the actual Webtoon? I remember thinking it was quite confusing. Then again, I read this quite a few years ago. Additionally, I remember that some of the time hijinks were really intriguing but lowkey got on my nerves. Additionally, I see it as more of a largely moving and exciting drama than an action. It is a meh for me... even though it was quite the notable webtoon to me.