BIOVIA Workbook 2022 PRD (Product Release Document) gives Workbook upgrade path as follows:

2020 --> 2020 HF2 --> 2022
2020 HF1 --> 2022

Workbook 2020 HF2 is not a GA (General Availability) release. It is released as a CA (Controlled Availability) release and is not available on the Dassault Download Platform. Customers can upgrade from Workbook 2020 to 2022 directly.

The upgrade path from Workbook 2020 to 2022 should be stated as follows:

2020 --> 2022
2020 HF1 --> 2022