Can you specify which characters you are talking about? I don't see any examples of Japanese-specific kanji in the Chinese images.

For example, the first image uses 沟 and 时 forms that are found only in simplified Chinese. In both Japanese and traditional Chinese, these are written 溝 and 時.

The images also correctly use traditional/simplified Chinese forms of 統/统. The Japanese shinjitai form [0] does not match either of them.

请 as shown in the image is similarly used only in simplified Chinese, not Japanese. (In Japanese, the traditional Chinese form is normally used in handwriting, and an alternate form of the 訁 radical is often used in printed text.)

[0]: https://en.wiktionary.org/wiki/%E7%B5%B1#Japanese

Thanks for your reply. I was wrong in that they are using the Japanese glyphs. The ones I've noticed are 次将及化等; I checked again and 次及化等 are actually Traditional Chinese glyphs, while 将 is Japanese glyph. It seems that these glyphs are a mix of multiple standards.

Thanks, I missed that 将 was shinjitai. I wonder what caused the weird mixture of glyphs in that example image.

One of the big complaints about Han-unification in Unicode is that simplified and traditional forms share the same code points so display of simplified vs traditional is up to the font to manage.

That's not really accurate. An overwhelming majority of the simplified characters have had their own code points in Unicode ever since 1.0. Some more details here: https://r12a.github.io/scripts/chinese/

That’s good to know. I’ve heard the complaint offered many times, but don’t have the necessary language skills to know otherwise.