It happens in every note. I've attached two PDFs exported from Bear notes on my iPhone. The Google one is a new note I just created and the second is an older, imported note. Please let me know if you can click on the links.
Just so you know, there's another bug, this time on Apple, regarding links in iOS generated PDFs. I've filed a formal bug report to Apple in their "RADAR" system (#28778486), but who knows if it will ever get fixed. It's currently marked as "Open." Here's the scoop:
There is a possible, iOS system wide issue with URL link conversion when printed or saved to a PDF. Current functionality provided by Apple recognizes the text after "http://" as a link only until the end of the line on the resulting PDF page. Once the system inserts the new line symbol, the text is still shown underlined, but it's not part of the link anymore — this is where the break in link formatting happens.
Steps to Reproduce:
1. Open Notes app or any text editor.
2. Print or save a note or text containing a long, multi-line URL to PDF.
The full URL should apply to the entire length of linked text.
The linked text is underlined, but the URL is incomplete, which often takes the user to a 404 page for that domain.