Difference between Sequential Rules and Flow Rules

Honestly, there is not much different with these in execution. Decisions offers multiple methods of achieving similar goals to fit your needs and own design preferences. As long as the rules are ordered in the way youd like them to run, they will execute the same whether in the sequential rule or just within a Flow.

The only thing I would keep in mind is that True/False sequential rules has two outcomes for the true and false ends, if youd like to replicate in a Flow instead, you would just need to add another end step.