Is Robinhood a reliable place to keep your money long term?

I use Robinhood exclusively for my taxable brokerage account, however my 401k and HSA are in fidelity. I really like Robinhood’s UI and app experience. It’s easy to use, and has a modern/sleek design. I can’t stand the apps for Fidelity Schwab and Vanguard. The have a clunky design and are less user friendly compared to Robinhood. My only concern is if Robinhood is a reliable place to keep my money long term or not. Are they a stable enough company to be around in 20-30 years? The other brokerage accounts have been around for much longer so they’ve proved their reliability.