All in all a happy ending! A lot to unpack here.

Everyone's on the same Earth now! Yah!

All the previous universes were restored! Yah!

Routh Superman is still out there to be used later if they want and it looks like he got a happy re-write! Yah!

Ezra Flash! Yah!

And, of course, Gleek!

Now we have an explanation for why Superman has two sons in this timeline.

The only disappointing part was not getting to see Welling again. But I guess they only got him for what they could get him to agree to.