Is the percentage of URL-only listings increasing with time?

What is the percentage which causes a concern?

[FromRocky]

I recently noticed that most of the sites have some pages which were listed by their URL-only, no title or description when you search “site:mydomain.com”. This type of listing seems to increase with time. The percentage range on my main site is currently at 10 to 12%.

What are currently the percentages of the URL-only listing on your site(s)?

Based on your experience, what is the percentage which causes a concern of the future site listed on Google?

[FromRocky]

Sent in on Aug 12 but just approved this morning (Aug. 15). So this thread is currently located in the second page. A bump is therefore needed.

Does anyone have a take on this?

Thanks