On that page there is a switch called "less comfortable" for showing only libraries/headers with user-friendly descriptions available. Similar switches are also present on the library/header pages.
My suggestion to rename those switches from "less comfortable" to "I am less comfortable" as it's currently ambiguous whether they refer to the person being less comfortable with the C language, or to the library/header being less comfortable to use.
I hope this is the right place for suggesting things related to https://manual.cs50.io
On that page there is a switch called "less comfortable" for showing only libraries/headers with user-friendly descriptions available. Similar switches are also present on the library/header pages.
My suggestion to rename those switches from "less comfortable" to "I am less comfortable" as it's currently ambiguous whether they refer to the person being less comfortable with the C language, or to the library/header being less comfortable to use.