The only robotics ETFs available to the public are full of the usual dross like Nvidia and Tesla.

If your broker gives you access to the South Korea Stock Exchange, Hyundai's ticker is 005380.KS - I believe they own Boston Dynamics, so that gives you credible exposure to robotics.

I was wondering the same thing about bio-tech years ago and never found one I trusted. Recently learned about “investment themes” offered by Charles Schwab, and I was actually impressed with their offerings and the ability to tailor your picks & percentages in a given “theme.”