Also take note that Exodus is not a pure open source client software:
Is Exodus open source?
Although Exodus is built on many open source components, there are components of Exodus that are not open source.
Exodus publishes the open source work used in the Exodus wallet on Github under the official company name "Exodus Movement". Individuals can view the source code, history, and continually published updates by visiting
https://github.com/exodusmovement.
Why isn't Exodus open source?
Exodus as a company has put a lot of time and work into producing our designs, animations and overall user experience and want to continue doing so for a very long time to offer the best user experience for holding crypto assets. Open-sourcing all aspects of the product including the design and user interface elements make it very easy for others to copy the work or even worse for hackers to make fake, malicious, phishing versions of Exodus to try to pass them off as official downloads with the goal of stealing individual's funds.
https://support.exodus.io/article/89-is-exodus-open-source#So the OP's fear I would say is legit, although others are vouching that Exodus could be trusted, but still if the produce is not 100% open source then there is a big possibility that it could suspend or even confiscate your funds, others call it selective scamming.