What file system type is commonly used for Linux partitions?

The ext4 file system is commonly used for Linux partitions due to its balance of performance, reliability, and extensive features. It is the fourth extended file system, and it offers several improvements over its predecessors, such as ext2 and ext3. Notably, ext4 supports large file sizes and file systems, along with improved journaling capabilities, which enhance data integrity and recovery in case of a system crash. Its compatibility with Linux makes it the default file system for many Linux distributions, providing efficient storage management and performance optimizations that are advantageous in a Linux environment.

The other file systems, while useful in their own contexts, do not align as closely with typical Linux uses. NTFS is primarily associated with Windows systems, making it less suitable as a standard for Linux. FAT32 is an older file system format with limitations, especially concerning file size and file system size, which restricts its use with Linux for larger applications. HFS+ is mainly used by macOS systems, further distinguishing it from the typical Linux environment. These factors contribute to the widespread adoption of ext4 as the go-to file system for Linux partitions.