ou can see installed hotfixes on Dynamics 365 for operations dev boxes  through command line using SCDPBundleInstall.exe or Visual studio using Dynamics 365 > Add ins >  Apply hotfix > View installed hotfixes . If you are using Azure dev ops as a code repository,  which you should , Following tip is going to help you to find change sets checked in for a particular hotfix. 

Sometimes its difficult to track change sets associated with a particular hotfix.  If you want to search  change sets associated  with those hotfixes you can  go to model folder of the hotfix  in packagesLocalDirectory folder  and search for Axupdate folder. This folder has all the hotfixes listed which you must have installed.

For example , I applied two hotfixes in dimension package , you can go to Axupdate folder of dimension package and see installed hotfixes .

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To view change set associated with it , just right click and from team foundation server option choose  history

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And there you go, you can see the change set associated with the hotfix.

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