188BET靠谱吗Why hightlights in some saved files (pdf) in zotero come with note symbols and some do not

188BET靠谱吗As I say in the title, why did this (Zotero 6.0.36) happen in my second Windows PC (Win 11) but this is not the case in the older Win 10 PC?I find those note symbols a bit distracting.Is there a way that I did not come across and that we can get rid of them?

1) in one article
188BET靠谱吗https://s3.amazonaws.com/zotero.org/images/forums/u9754444/huiivk14qw6lw9cfhoyu.png
2) in another article
188BET靠谱吗https://s3.amazonaws.com/zotero.org/images/forums/u9754444/uy4hz3pi8qwc9t86zlh3.png
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