Is it worth using BEM naming everywhere?

Question

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Is it worth using BEM naming everywhere?
Starting from landings ending with online stores.

Answer 1

No

Answer 2

if you do not use BEM but only naming - then definitely not. If you're using BEM, then maybe it depends on whether you need it or not.

Answer 3

It is worth using BEM everywhere and always. And naming without the approach itself is meaningless