Patrick
Start with whatever you're comfortable with. Don’t worry about bundle size or render performance too much, you need to ship features people want.
For starters, you don't start with React if you're building a new thing in the 2020s. You just don't. The browsers its design was contorted to support are no longer in circulation (MSFT doesn't support, and won't sell, IE). Even if you wanted to keep JSX, you can get it at much lower cost w/ preact.
You are up to date.