Since we at MotherDuck are running a serverless cloud Data Warehouse on top of DuckDB, we've observed the massive leaps in performance over time ourselves. Less exciting but perhaps more important are the improvements in stability and semantics recent DuckDB versions brought out.

Shameless plug - if you love DuckDB but don't want to manage it yourself, or if you need a supported 3rd party ecosystem, sharing/IAM, a fully-fledged beautiful web UI - all the things beyond DuckDB that are important to adapt DuckDB as a solution - I encourage you to look at MotherDuck. You can sign up in seconds (about 17 seconds, I timed it), you get a 30 day Free Trial without having to put in a credit card. We also offer a perpetual Free Tier and a Startup Program for qualifying startups.

(co-founder at MotherDuck)