Steps to replicate the issue (include links if applicable):

• Use an android device, and a Chrome browser, to open any wikipedia page in edit mode
• Copy the following text into the edit window: אבג ''אבג'' אבג (these are the first three letters in Hebrew, repeated three times, where the middle occurence is wrapped in two sets of single quotes – the wiki markup for italic text)
• Move on to preview the edit (no need to actually publish it).

What happens?:

All three repetitions of the letters look the same.

What should have happened instead?:

The middle occurence should have looked "tilted" (italic formatting).

Software version (on Special:Version page; skip for WMF-hosted wikis like Wikipedia):

Other information (browser name/version, screenshots, etc.):

The issue is seen on Android (Samsung) devices using Google Chrome, both in "mobile view" and in "desktop view".
Issue NOT seen when using the Samsung Internet browser, or when using Chrome on an iPhone device (that is, in these cases, the middle word correctly looks italic).
The problem is only with Hebrew letters; English letters and punctuation marks look okay.
The problem was seen both in enwiki and hewiki.
The same issue exists in edit summaries containing Hebrew text: the entire summary is supposed to be formatted in italic, but the Hebrew text (which may be the entire summary text) is not italicized. Example edit summary (here you don't have both italic and non-italic texts side by side for comparison, so I'll just let you know that in Hebrew italic letters, there are no vertical lines; if you see many vertical lines in the edit summary letters, then you see the issue. Notice how the colon *is* tilted.)
Edit: forgot to mention earlier: first reported on hewiki on Sep. 8th 2025. Prior to that (or a little before), it worked fine.