Caution, plugin Emoji Autocomplete Gutenberg is outdated as per wordpress.org notice and not compatible to current WordPress core.

This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.
Tested up to: 5.4.0

Besides that Emoji Autocomplete Gutenberg includes imges via hardcoded paths to external third party server s.w.org which can not be used in a GDPR compliant way.

Plugin Emoji Toolbar includes assets in editor from external third party server unpkg.com which also can not be used in a GDPR compliant way.

These kind of plugins might look nice in the first place but can not really be used in a commercial environment with GDPR policies in place.