This is an intentional change. Point and spot light radiaii are now interpreted as emissive spheres by Cycles
There's a thread at #114241 with further updates on this change
I really hope we won't go back to stone age of non physically based rendering it.
We're not saying the new behavior should be removed (it makes sense why it exists), we're saying that…
Here's another case where the old behavior also made sense for artistic reasons, and where simply making lights smaller (or using area lights for that matter) isn't an option: . While I see the reasons why, I can't seem to replicate the old falloff behavior unless I set…