Anyone do it? I've read articles that say you just basically burry compostable material. Anyone have pros, cons, advice or any input ?

Yes.
When I have something that seems too yucky for the chickens, or the compost... It gets a burial...

The only 'problem' with compost burial is that it takes a little longer.
Not really a problem.

I have also buried stuff now and then - works fine.

I read an interesting critique recently that essentially said "composting" ( hot, layering, turning) is highly overrated as it is an artificial process. So, anything that gets the stuff rotten is fine to me as it adds organic nutrients to your piece of the earth. I'm for adding life, while stopping short of creating a nuisance situation. And im for less labor, let nature and time do the work.

Decomposition will happen no matter matter what/where, as long as there is ample oxygen and moisture available. So burying it (not too deeply) is a good way to get it out of the way for whatever reason (yucky, smelly, little available space....).

Thing to keep in mind is that, if you're planning on burying a large volume of biowaste in one place, the level of the soil will drop over time with decomposition. So don't go planting trees on top of such a thing.

In general, the aeration and churning of a compost pile help the bacteria do their job, but here are the pros and cons of ground composting by burying ( I do it with leaves every year. )
PROS
Ease of Set-Up - Just dig a hole and bury compostables without needing bins or piles.
Direct Soil Enrichment - Materials decompose and directly enrich the soil, improving its fertility.
Pest Reduction - Burying compostables reduces the risk of attracting pests.
Low Maintenance - Once items are buried, there's minimal upkeep compared to traditional composting methods.
CONS
Effort of Digging - Digging can be labor-intensive, especially in tough soils.
Slower Decomposition - Items might break down slower when buried compared to well-aerated piles.
Root Disturbance - Digging can disturb the roots of nearby plants.
Soil Disruption - Continuous digging might affect the soil structure and microbial balance.

Some good points, Steve.
In cleaning up the fall garden, I dig a few small areas and bury some of the more done stuff from my compost piles. if I plant over that right away, like radishes, I add some fertilizer mixed in with the surface, as most of my stuff at that point is cold brown leaf remains.

In planting hills of squash, I try to always bury a good pile of previous years compost- often, mostly brown leaves.

So here, I'm not exactly in-ground composting- I am in-ground finishing the process from months of above ground.

My biggest limiter to in ground composting is space- where I want most soil improvement, I am also trying to grow crops as much of the year as possible.

I have/had two four by three by three piles of garden/kitchen debris in the North garden.
Before the rain hit I dug out a approx. four by four by sixteen foot hole in the one half of the garden and buried one pile.
By spring time, with rare exceptions, it will be decomposed, at minimum, that little if any is visible when roto-tilling in the spring.