This page conflates age verification, which Brazil's law requires, with single source of truth age restriction APIs, which California's law requires. One requires validating a government ID. The other just says that each app shouldn't separately ask about age, with no change in how that age is required to be verified (it isn't).
This confusion makes the summary tables completely misleading. For example, GrapheneOS's cited statement (https://grapheneos.social/@GrapheneOS/116261301913660830) is incompatible with the Brazilian law but not the Californian one.