I’ll start with that I am not from Austin. Having said that...

I think you will be fine if you go in with the right expectations. It’s no Silicon Valley. so if you are expecting that kind of diversity and density startups you prolly will fall short of your expectations. Also, Having said that at the end of the day you need one company to work at a time. Also with COVID and wfh on the rise you might find a broader range of startups eventually but you shouldn’t move based on that. If you think In terms of skills development I think there are more than enough startups to cover your basis.