Regarding the introduction of the New Notifications Hub, which replaces the previous user notification preferences in personal settings (doc). As part of those changes, the option to receive notifications for your own actions has been removed, and the new Notification Hub does not offer a similar option. Having the option as it was before would be very useful:

Potential Workaround:

Automation:

The recorded quick video to explains how to create the rule :

• Automation rule for issue creation notification

Parameters used in the video:

Trigger: Issue created
Action: Send email
To: Reporter
Subject:

The issue {{issue.key}} was created

Content:

The issue {{issue.key}} was created. 
Issue Summary: {{issue.summary}}
Link: {{issue.url}}

Filter subscription:

If there are any concerns regarding the Automation execution limit, we have another option with Filter Subscriptions, in case you don't mind the users don't receive the email right away with the information of the issue created. The recorded quick video to explains a bit better the scenario on how to configure it:

• Filter Subscription for Issues Created

The JQL used in the filter is the following:

created > startOfDay() AND reporter = currentUser()