GRUB can also do this. In fact, I'd be in favour of deprecating GRUB as the default for UEFI on Linux distros as it's a huge codebase (including lots of legacy things) which is overkill for booting a single OS (the Linux kernel itself can be a UEFI application, no bootloader needed) but for this use-case it's perfect as it's essentially its own mini-OS and can handle a wide array of filesystems including LUKS, Linux mdadm RAID, LVM, etc.

To be fair - some distros are moving away from GRUB as the default.

Pop!Os uses systemd-boot (formerly gummi-boot) by default if you're on an UEFI system, and only falls back to GRUB for legacy bios.

Arch is also much easier to setup on systemd-boot.

The issue is that GRUB still has a very compelling support matrix - it'll work basically everywhere, and with most all configurations. So if you're already running a batteries included distro, where someone else is doing most of the configuration and the downstream systems are hugely variable (old consumer hardware) - then GRUB still makes the most sense.