Instead of asking why, perhaps it's better to ask: Why not?
Consider Bitwarden, for instance. Does it have any real competitors running on a quick rebrand of their stack?
Better yet, as a non-technical founder, why haven't you stood up a successful Bitwarden competitor? The secret sauce is right there and you can contract-out the rebranding for like $20.
It's rare to have a tech mote nowadays and without a tech mote competitors will pop up whether or not you choose to go F/OSS.
Consider Bitwarden, for instance. Does it have any real competitors running on a quick rebrand of their stack?
Better yet, as a non-technical founder, why haven't you stood up a successful Bitwarden competitor? The secret sauce is right there and you can contract-out the rebranding for like $20.
It's rare to have a tech mote nowadays and without a tech mote competitors will pop up whether or not you choose to go F/OSS.