Disable Spotlight before installing a large software update?

Is it a good idea to "disable" both Time Machine and especially Spotlight before downloading any large software update?  And then enable again after the install?
This question is based on what I have read on various threads.  Would like to know both the "pros" and "cons".
Thanks

Not sure where you read that but it is false. There is no need to disable anything before doing any "Updates".
It is always a good idea to do a Time Machine backup before you do any major updates and Especially when doing UpGrades so you can Roll back to that TM backup if the "UPGRADE" fails or causes problems.

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