Who should install it

No one could easily mix both. You either tracked with rigid DSP rules, or you mixed with flexible native plugins but lost low-latency recording. Pro Tools 2021.7 solved this with the Hybrid Engine.

You can select words in the transcription to automatically highlight and edit the corresponding audio clips. Transcript Window: A dedicated window (accessed via Window > Transcript

Community discussions on platforms like the Avid Pro Audio Community (DUC) indicate that while some users still experienced UI sluggishness, many found it significantly more stable than the 2021.6 version it replaced. Experts at Production Expert categorized it as an essential update for those who frequently work with video within Pro Tools. Pro Tools 2021.7 Release Info - Knowledge Base

Avid’s release numbering for Pro Tools follows a format (e.g., 2024.3, 2024.6, 2024.10). There is no official version 2021.70 (since months only go up to 12).