I am looking to filter all the similar issues created/resolved and closed with same or identical root cause or for the same reason. Let's say simple example I am looking for is as below.
This will help me to find we have got these many issues from this workflow or functionality and to emphasize more on that specific functionality.
Hmmm ... 🤔 You'd have to be very strict with how descriptions are written and you wouldn't be able to enforce that a Description filled in by someone has an exact value within a subset. That tied to RegEx not being available for JQL searches I can't see this working as a solid way of filtering, given the scenario you propose.
I'd definitely recommend using a custom field (eg. Root Cause) holding a specific subset of values (dropdown style).
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