Each year Adobe rolls out new features for its programs. Jordy from Premiere Basics runs through five new features in the 2022 version of the program. While you could could do the audio remix things prior to this, you had to pull your audio into Adobe Audition to remix it. Embedding that feature into Premiere is nice, along with the audio transcription addition.
You can learn more about those two updated features in the video, along with three others that Jordy shares. If you’d like to learn more about all of the new features in Adobe Premier Pro 2022, check out the Adobe blog at https://helpx.adobe.com/premiere-pro/using/whats-new.html.