[BTC] What are the benefits of different adresses for each incoming transaction?

My cold wallet automatically suggests a fresh Bitcoin adress for each time I want to 'receive' BTC from a transaction.

What are the benefits of that supposed to be?

Privacy? If receiving from an exchange, wouldn't that be the weakest link in any way? If receiving from a private entity, still, where's the benefit of different adresses each time?

From a purely financial perspective: doesn't having BTC stored on different adresses only have the potential disadvantage of higher fees for future outgoing transactions? (in the case that the total would surpass the amount stored on any single adress)

Thank you.

submitted by /u/Ebenberg
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source https://www.reddit.com/r/btc/comments/m2juuj/btc_what_are_the_benefits_of_different_adresses/