Hi, 

I think you can use AND operator in filtering by calling filters multiple times.
Example:

var searchQuery = client.Search<PageData>()
    .Filter(x => x.City.Match("Chicago"))
    .Filter(x => x.EmployeeType.Match("Exempt"));

You can read more about Episerver Find filtering here:
https://world.episerver.com/documentation/Items/Developers-Guide/EPiServer-Find/8/DotNET-Client-API/Searching/Filtering/Filtering/

I know how to do the and/or searches, but every page will have different settings. So I would really need something like this

var searchQuery = client.Search<PageData>()
.Filter(x => x.MatchType.Match("All") & x.Groups.MatchAll(listOfUserGroups))
.Filter(x => x.MatchType.Match("Any") & x.Groups.MatchAny(listOfUserGroups))

But not sure how to write those MatchAll and MatchAny functions.

I would recommend a method newmethod that returns FilterBuilder<PageData> . Then in your search call .filter(newmethod())

Here's a sample:

 private FilterBuilder<PageData> BuildTagsFilter(List<string> stringsToMatch, bool AnyOpertor)
        {
            var client = Client.CreateFromConfig();
            var tagFilter = client.BuildFilter<PageData>();
            
           // if OR operator - Any
          tagFilter = tagFilter.And(x => x.City.Match("Chicago") | x.City.Match("New York") | x.City.Match("Los Angeles"))
          
            // if AND operator - All
            return tagFilter.And(x = > x.City.Match("Chicago") & x.EmployeeType.Match("Exempt") 
        }

//In your search call:
searchClient.Search<PageData>.Filter(FilterBuilder(stringsToMatch, AnyOperator))