Keyword search to return exact word match

I would like to extract the keywords that are matched between two columns of text in a dataset, but to have an exact match on the full word only.

See the linked Excel file, the output desired for UID 2 is only "software", not "war, software", and UID 3 would have no match for "drive" in the Abstract as the word there is "driveway"

Keyword Example in Excel

The example includes keywords “war” and “software”.  War should not be considered a match for software.

Using a List approach I can return a TRUE / FALSE for the exact match, but I also want to show the user the keywords that were matched.

#"Added List of Title and Abstract Edited" = Table.AddColumn(#"Inserted Merged Column", "Title and Abstract Edited as List", each Text.Split([Title and Abstract Edited]," ")),
    #"Find Keywords in Title and Abstract List" = Table.AddColumn(#"Added List of Title and Abstract Edited", "Title and Abstract Edited Keyword Match", each List.ContainsAny([Title and Abstract Edited as List], KeywordsList)),

I have tried two other approaches to obtain the matches but they return the false positives.

#"Added Keyword Matches as list" = Table.AddColumn(#"Filtered Rows1", "Keyword Match List", (x) => List.Select(KeywordsList, each Text.PositionOf(x[#"Title and Abstract Edited"], _) >= 0)),


#"Add Abstract Keyword Table" = Table.AddColumn(#"Extracted Values", "Keywords Found", each let CurrentText = [Abstract] in Table.SelectRows(#"Keywords In Use",each Text.Contains(CurrentText, [Keywords], Comparer.OrdinalIgnoreCase))),

Is there a way to return only exact word matches, like the List approach that returns TRUE / FALSE?

Also, this query takes a considerable time to run, with the processing indicating 200MB for the keywords, which are a list of 300 words, so seems like it is looping through that table many times.  Is there a better approach to eliminate this?

Appreciate any assistance.