Recently rewatching Mos again I noticed a feat that clearly debunks that Clark or Doomsday survived the BVS nuke except for radiation.
In the link at 1:28 we see Zod's cape on fire and he reaps it and throws it away. It's set on fire due to the garage explosion which is vastly lower than the heat of a nuke.
Clark's cape is similar as he got it from the Krypton ship and no mention was made of it being any special. Therefore it should be burnt by similar temperatures. Fuel burns much less than 1000 degrees hence why engines don't melt. A nuke is 50 million degrees and should easily vaporize Krypton capes.
Since Clark's cape was untouched, it stands to reason that it was not exposed to the heat of the nuke.
Again BVS went to went to extreme lengths to show us that the nuke detonated twice the distance of " Starfish Threshold"
As shown here the nuke detonation was twice as high as " Starfish Threshold"
Now Nasa states that if a nuke is exploded in space only radiation is emitted.
Heat and Blast are 75% of a nukes destructive capacity. So in this scenario Doomsday and Clark are only exposed to 15% of the nuke. Add also that DD is amped by absorbing radiation, he therefore can't be said to have even tanked that. Also Clark was left comatose with his skin flaking, so he didn't even survive it.
It is therefore unreasonable to assume that any Kryptonian in Dceu can tank or even survive a nuke.