Yes, it was everywhere. With a few notable exceptions, some of which were single mobs previously placed very intentionally.
I logged in at Hive's Edge - that's a mountaintop on Cyrene overlooking the main Empi hive. The top of the mountain normally contains a pack of very sleepy Stalker Paneleons (yes, Cyrene places the maturity before the species). Southeast gives easy access to a variety of extreme low mobs, and Northwest over or under that gnarlie cliff gives good access to lower-mid spawns that I have come to love: jellyworms, scout bot 700, a handful of small tide claws, a knot of old alpha paneleons for the Strength mission, and the only crystal pede spawn that I know of in the game.
The mountain was solid red.
The puny nimet spawn at Rookie was also solid red, but that's not really an issue with nimets and a tagger.
The weak paneleons at Rookie were a lot of fun! Solid red pack squeezed into a tiny area, sweat one til it bites, kill it.
I spent most of the day picking up items I had bought from auction at other planets. My calypso dailies were bonus chirpy and then molisk - I notice that while the puny bristles and starving atrax at Half Moon Bay had bred like the rabbits they are, my favorite area for chirpies just down the road had not changed. Likewise, The Mega Volt had normal (and very enjoyable) spawns.
The noob rig was overrun with drone prototypes, however, when I visited Ashi I saw normal spawn of atrox near the actual rig. The mixed spawn at ashi north revive was about twice as dense as it was last time I visited, last year.
In sum, I kinda wish I'd been on rocktropia with a lot of explosive projectiles.