Yes, smaller chip / die means more current for the same output, basically.
But it’s concentrated in a small surface, so the intensity is higher so it throws better.

But it’s a matter of preferences too.
do you want a small spot / narrow beam, or a bit wider so you can illuminate bigger objects?

219C is quite similar to SST-20. But SST-20 has a slightly smaller chip / die than 219C.

If you want pure throw, you should get the Osram “White Flat”.
Still only available in cool white though.