Review of flavour physics at ATLAS and CMS

A review of recent results in flavour physics at the ATLAS and CMS experiments is presented. These include measurements of quarkonia and charm production cross sections, the B0 lifetime, and the mass splittings between excited and ground B meson states. Results targeting the characterisation of all-charm tetraquarks are also discussed. Finally, studies of rare heavy-flavour decays are reported. The various analyses exploit Run 2 and partial Run 3 LHC data and contribute to pushing the precision frontier in flavour physics.