That's crazy good then man actually facing jovians in a ground battle must be terrifying. Placing aside the weapons they have it would be like fighting an army of monk wizard gestalts.
Jovian ground battle... Is mostly fought by non sapient constructs, actually; they wouldn't be able to achieve The Glow.
That being said, the doctrine tends to fall on the "biblical plague" scale of encounters. The most common bodyplan used would fit the Seeker stealth robot enemies from X-COM:EW, but obviously upgraded with every ounce of Jovian tech. This is not limited to but includes the use of collimated sonic pulse plasma beam weapons for their main weapons, phase rifle weapons (with 8th-ray kinetic impact augmentation) on each tentacle, skrill blister point defense CIWS, dual parapsionic-enabled biobot neural clusters (one to operate the telekinetic field via psi-amp, one to "merge" with the Mektoid-grade psi shield emitter), kara'kesh (upgraded) personal shield emitters, the full standard biotic suite (dash/charge, slam, barrier, warp), personal biomechanoid armor with regenerative healing emitters and structural reinforcement) all powered by a quartet of personal hyperplanar taps. Each combat drone would have at least five non-sapient Host Pearls; one as overall command and comms, one on defensive oversight, one for maneuvers, one for immediate combat, and one as combat engineer/medic to the platform itself.
As to eldritch combat capabilities; each would have a standard Dho-Na Curve rig, for personal use; Class 4 personal wards with anti-perception glamour, and all weapons would include class 4 banishment effectors as well. This isn't the best the Jovians can do for personal use, but it's designed for ruggedness and mass production.
That is the description of the
extremely disposable infantry troops. Each dimension the Jovians have inhabited has turned that dimension's Callisto into a military forgeworld where they churn out massive numbers and keep them in cold storage waiting for deployment, along with embedding extra numbers in stealthed depots in asteroid moons captured by that Jupiter's gravity well.
Any supernatural or higher being or so on that's beyond the grunt drones to face would be confronting the Jovian Shades, who are like Commander Shaleson -- half-ascended with heavy emphasis on the development of personal soul spaces like Andes, and implanted with the Taelon meridians, carrying Manta-grade photon-ray cannon weapons and hyperplanar taps in their souls, along with the best psi amps and Dho-Na Curvature gear they can fit within. This is vehicle-grade stuff. These would be your "warrior wizard monks", as they get extensive combat training with full range of parapsionic and biotic abilities on top of training to develop The Glow and all of the abilities you gain from being a literal energy being.
The standard upgrade from there includes the use of militarized voidshuttles as armored personnel carriers with Manta oversight for CAP. The voidshuttles utilize wraith culling beam technology to be able to deploy hundreds of the Grunts in mere seconds without even slowing down for the LZ... all of which would be the initial spread deployment for interdimensional gate receivers to be deployed and allow sustained delivery of further troops directly to the theater of operations.
Actual combat with these things... Well. There are 1.5 trillion sapient Jovians. There are ten times as many non sapient biobots just in regular civilian functions that will be visible within Jovian culture. There are maybe seven trillion Grunts in storage; but the Callisto forges mostly spend their time ensuring their strategic resource reserves to extremely rapidly produce more of the things are kept up to snuff, and focus on developing the capacity to rapidly produce new warmachinery. The methods for this include the use of bioslurry nanoforges and star trek style industrial replicators fed with 9th-ray "ontokinetic" reserves (ontokinetic meaning able to manipulate the existence of things). They literally whoosh the things out of thin air and tentacle sprayed goo. By contrast, there are perhaps 60 billion Shades in service. Mostly deployed to the Stargate 'Verse, where their current doctrinal stance is that it would take at least 100 Shades to equal one Alteran in a fight. (Numerically there are more Ancients than there are Shades still, which means they don't even have the personnel to so more than sting a full commitment by the Alterans should it come to it. Of course, the Alterans have fully committed to their energy being existence now and as a result have no direct answer to the Stellar Converter strategic weapons that the Jovians could deploy into the higher planes they exist at by having Shades act as weapons spotters.)
So yes. A ground war with the Jovians would not go well for anyone they might actually face right now.