Do you have a rough idea of how long it will take to complete the process with other companies?

The estimated time to complete the process with other companies depends on many factors: interview stages, internal processes of the companies, their workload, etc. I usually try to keep communication open and inform both parties about the current status. If there are specific deadlines, I communicate them to avoid misunderstandings.

For example, if I have interviews scheduled with several companies, I might say: "I expect to complete the process within 2-3 weeks, after which I will be able to make a final decision."