"Find on page" stopped working since iOS 16 update

I've been having this problem for a few months and it's making it so much harder to get any work done with my phone.

This happens nearly 100% of the time when I use Safari, and it happens sporadically with other apps when looking at a PDF (pages, acrobat etc).

I frequently read research papers and need to use the "find on page" keyword search feature multiple times in a day.

It no longer finds the keyword I am searching for, even when I can see one example of the keyword on the document and I know it's there.

Sometimes if I save as a pdf or open a link in "Pages" or another browser, sometimes it will work then, but sometimes it still will show "0" results.

How can this be fixed? Resetting and clearing cache/cookies has not helped.