Hi @OsvaldoLuemba-4517 ,
Neither our internal nor external documentation includes any known issues and user limits for GSA. This is still in preview, so there may be some changes down the line. But there doesn't appear to be anything that I can find that implies there is a hard-limit for the number of users that are supported
The Global Secure Access client for Windows (preview) - Global Secure Access | Microsoft Learn
I reached out to the GSA engineering team and will update this post if I hear differently from them though.
If the information helped you, please Accept the answer. This will help us as well as others in the community who may be researching similar questions.