Should I use queue workers for every automated email?

Hi,

My question may sound dumb, but I know it is recommended to use queue workers when you send welcome emails, for example, to speed up response delay.

I was wondering if in general, you should always use a queue workers before sending emails? Like if I send automated emails on different stripe webhooks, should I push this action to the queue?

And also what is the best approach regarding performance when you know that at specific time, you will need to send a bunch of emails at the same time?

Thank you guys for the help.