On July 21, the Adobe Premiere Pro 15.4 update brought native support for the Apple M1 chip. Following Photoshop and Illustrator, this is the update M1 users have been waiting for.

This release also adds native support for Apple M1 devices, new tools for styling titles and captions, and other workflow improvements that help speed up your work and deliver content that connects with your audience.

Source (excerpt): https://helpx.adobe.com/jp/premiere-pro/using/whats-new/2021-5.html

By the way, After Effects and XD still aren't supported. The day when all Adobe products are fully compatible with M1 isn't far off.

Adobe Premiere Pro 15.4 Apple M1 native support release notes

July 22 update: XD also got native M1 support in version 42.0.
https://helpx.adobe.com/jp/xd/help/whats-new/2021.html#apple-silicon

Adobe XD 42.0 Apple M1 native support — up to 80% faster

According to Adobe, it runs up to 80% faster.

This version runs up to 80% faster on key workflows than similarly configured previous-generation systems.

Source (excerpt): https://helpx.adobe.com/jp/xd/kb/big-sur-apple-silicon-rosetta-emulation.html