Hi Doneworking Paul,
Your PC 2350 is a 2013. Ours is a 2007 2350. I assume nothing changed during those years with regards to the cabinetry supporting the front TV.
We ordered our PC without a front TV because MSRP for a front TV was $1500 if my memory serves me right. Not just a steep price back then, but the TV was a small 20" with an aspect ratio of 4:3. Back in 2007, I bought a larger 26" wide screen for far less and installed it myself. So I have experience with the area of cabinetry you wonder about.
In our PC purchased with NO TV, there were two layers of finished wood in that area. The first layer was a very thin plywood. The deeper layer was a much thicker structural particle board, also with a nice matching finish. I removed the front thin layer and worked exclusively with the inner thick layer primarily to set the TV as deep as possible so it would not interfere with the opening of the two side glass-panel doors.
What may be interesting to you is that I was able to get my hand behind the thick inner panel via access from the side cabinets. The space is narrow, my hand could barely get behind there to bolt our TV to it from behind. I recall shaving off some wood material to get my hand to the back side more easily.
I don't know if any of this helps you, but maybe it will.
For reference...
Here is our TV, mounted by me back in 2007. Admittedly it was not an easy project. I had to make a wedge shaped panel for the TV to mount to (to get the maximum downward angle) and bolt that to the thicker particle board of the PC.

This bottom-side view shows two large holes the the bottom in the cabinet. I installed two computer fans there to cool down the TV because it ran hot and I was concerned of trapped heat. You can see some of the thickness of the finished particle board. Also seen is a bottom bracket I added to support the TV better and prevent it from moving so much on rougher roads.
This picture also shows how much I was able to angle the TV downward, yet still able to open the side glass doors.

When I was all done, the TV was physically stable, but inside the TV was a lot of funny squeaking and such. I ended up taking out the TV, taking the back of it off, and adding thick felt pads in strategic places throughout the internals, especially where there were large sheet metal plates installed for electronic shielding. That really did the trick. Our TV has not rattled since.