SketchUp year pages
Pick the year the other computer runs. 2017 and 2020 pages save that year's file. 2021, 2022, and 2023 pages save the current file those newer releases share.
SketchUp 2017
SketchUp 2020
SketchUp 2021, 2022, and 2023
Choosing 2021, 2022, or 2023 saves the current SketchUp file. SketchUp 2021 through 2025 share that file. If the older app rejects it, choose 2020. That download uses the 20.0.1 header.