All custom edge drivers are installed in the same way.
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follow a link that the author will give you (in most cases, as in this thread, that will be listed in the first post of the author thread).
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subscribe to that channel
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choose the specific edge Driver that you want downloaded to your own hub. In most cases, this will happen very quickly, but there have been some reports of it taking a couple of hours.
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once the edge driver is on your own hub, you will be able to use it.
It sounds like you might benefit from reading the community FAQ about edge Drivers, which also gives you information about what will probably be your next questions, like how to tell which edge drivers are on your hub 
FAQ: I have no idea what Edge is. Is that a new developer tool? (2022)