Unless you have a specific reason to do so (manage different bids, use different ad copy, audiences, ad schedules etc.), I don’t see anything that justifies splitting match types. The split itself won’t enhance your performance and might even lead to worse-performing campaigns because you’re segmenting the data that the algorithm needs to optimize ad delivery.
I haven’t in over a decade now. If a targeted KW is too broad, then I knock it down to phrase match. If phrase is too broad, then exact. If that particular KW doesn’t have any volume, or is still too broad to convert at an acceptable CPA, then I pause that KW.