Use apt When
You are managing packages as part of the operating system on Debian or Ubuntu systems.
You want packages integrated with normal OS-level dependency expectations.
How Homebrew and apt differ in ecosystem, target platform, and package expectations.
apt is the native package manager for many Debian-based Linux systems. Homebrew started on macOS and is also useful on Linux when you want userland tooling outside the system package layer.
You are managing packages as part of the operating system on Debian or Ubuntu systems.
You want packages integrated with normal OS-level dependency expectations.
You are on macOS or want a developer-focused userland package manager.
You prefer a toolchain that is less tied to system package conventions.
apt is system-native on Debian-style Linux. brew is developer-friendly userland tooling.