Here is another a lesson from the war in Ukraine for a Taiwan contingent. China is working on a 203mm super heavy artillery system to blast fortifications.
Nah, it still that shit about the PLASSF putting a request for a 203 mm artillery to be used for some testing lol.
It's not gonna end developing into some 203 mm artillery for use against Taiwan.
I believe that the 203mm-caliber artillery still has its viability, not just in terms of enhancing its punching power, but increased range too.
For the later, the usefulness of said artillery shouldn't be merely limited for Kinmen and Matsu only.
China's PLZ-05 and PCL-181 have maximum firing ranges of around 70 kilometers (with rocket-assisted projectiles).
Station them on eastern regions of Penghu, and they can hit targets around the coastal regions of Chiayi County (but outside the city limit itself).
If we can replace PLZ-05 and PCL-181 with the alleged 203mm artillery - Which has a greater range of, let's say around 90-110 kilometers - Then targets located around and within the cities of Chiayi and Tainan can be struck as well.
(For reference, the prototype M1299 self-propelled howitzer currently being tested by the US Army is able to reach 110 kilometers with the XM1155 sub-caliber projectile.)
Of course, Penghu Islands have to be secured by the PLA to offer staging grounds for the 203mm artillery pieces to work. It is also preferable that Y-20s can airdrop this artillery for rapid deployment needs.
Other than the Taiwan scenario, this artillery can also be deployed in the Himalayas and the Korean Peninsula.