Generally these kinds of clauses should be viewed as red flags. I had one contract that was something like "We reserve the right to buy all IP from anything you

Generally these kinds of clauses should be viewed as red flags. I had one contract that was something like "We reserve the right to buy all IP from anything you work on while employed here for $1". I got it removed before joining but looking back it was one of the most toxic placed I'd ever worked and this was just one of a number of red flags.