React Native is bad. Security concerns, fewer components, fragile UI, abandoned packages, etc.
Flask
Like Django, Flask is a python framework. Both are the most popular python frameworks. Flask is somewhat regarded as a microframework.
Laravel
Laravel is undoubtedly the best PHP framework. Unless you are already a really good PHP developer, learning Laravel won’t give you the maximum value for your time.
Bootstrap
I understand bootstrap is not just a CSS framework but a UI kit. Regardless, it is compared hand in hand with CSS frameworks.
Angular
Angular was released in 2010, React in 2013, and Vue in 2014. Angular was released earlier than the others.
Nest
Nest is a solid framework. Unless you are a good typescript or Angular developer, you shouldn't mess with it.