Recent Belle II Results on Hadronic $\mathit{B}$ Decays

The investigation of $B$ meson decays to charmed and charmless hadronic final states is a keystone of the Belle II program. Analyses of such decays provide reliable and experimentally precise constraints on the weak interactions of quarks. They are sensitive to effects from non-SM physics, and further our knowledge about uncharted $b\to c$ hadronic transitions. We present new results from combined analyses of Belle and Belle II data to determine the quark-mixing parameter ${\phi }_3$ (or $\gamma$), and from the Belle II analyses of two-body decays that are related to the determination of ${\phi }_2$ (or $\alpha$). We also present recent Belle II results on branching ratios and direct $\mathit{\text{CP}}$-violating asymmetries of several $B$ decays, which result in a competitive standard-model test based on the $K\pi$ isospin sum rule and first observations of three new $B\to D^{(\ast )}K{K}_S^0$ decays.