Charm lifetime measurements and other first results from Belle II

Upgrades at the Belle II experiment and the SuperKEKB asymmetric-energy electron-positron collider enable precise measurements of particle decays. Even with early data, Belle II has made several world-leading measurements of particle lifetimes, which are useful as tests of effective models that are used in searches for physics beyond the standard model. Especially for charm hadrons, these effective models depend on careful consideration of non-perturbative effects to give an adequate description of lifetimes. I will review recent measurements of charm baryon lifetimes that will improve the world-average values, provide refined tests for effective models, and serve as benchmarks for future measurements. I will also detail other first measurements with early Belle II data and explore some future prospects.