It looks like the booster failed to light all necessary engines for the burn back after flipping causing control of it lost so they quickly blew it up. No idea what happened to starship. It bacicly made it to power down point. Also many tiles were lost durning its 8 minute ride. I realy think this was a success test flight. All engines worked for the ascent and velocity was double of previous flight at each milestone. The booster powered down with staggered shutdown to prevent hammering in the fuel supply as it shut down.
I follow this guy as he is best non biased reporting I’ve found