You can ask the users to add your account to their Google Analytics account or property.
My advice would be to grant access on property level because you can have multiple properties under one account. By granting access on property level, you only access the properties you need to pull data from.
Also, look into GA4 and the BigQuery link. You might build one query that can pull the data from GA and export it to your project.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…