Platforms
On Nintendo Switch
30 frames, smaller install
Konami's product specs put the native Switch game at 30 frames per second. The standard edition install is 4 GB, Midnight is 6 GB, and the demo is 3 GB. Those are smaller than the 8 GB and 10 GB figures on the other platforms. Text languages match the rest of the versions: 11 languages, with Japanese and English voices.
Switch 2 compatibility is a different page. Short version: no native Switch 2 SKU, 60fps in compatibility with a lower resolution.
Physical copies
Konami's product page links physical listings at Best Buy, Amazon, GameStop, Walmart, and Target. The preorder Alucard costume still has to be downloaded; it is not only on the cartridge. Regional cover variants were not verified one by one, so they are not described.
What I ran into
I compared the gigabytes before I compared the frame rate, because a 4 GB Switch build is the kind of number people argue about. Both numbers are from the product page, and both are in the first section.
Questions
What is the Switch frame rate?
30fps for the native Switch version.
How big is the install?
4 GB standard, 6 GB Midnight, 3 GB demo.