Exclude_requests parameter


from this documentation https://matomo.org/faq/how-to/how-do-i-exclude-specific-tracking-requests-in-matomo/ is not clear to me how to declare the exclude_requests parameter.

I would like to understand if in case of multiple values is possible/valid the following:

exclude_requests = "url=@url1|url2|url3"

and in case of urlref, if it needs to be escaped or not, example:

exclude_requests = "urlref=@my\.url1\.com|my\.url2\.com"

I had the chance to test it by myself by looking at the real time page.

dots do not need an escape and the syntax with ‘|’ does not work for me. So how to declare multiple values in a smart way?