diff --git a/src/installation/guides/fde.md b/src/installation/guides/fde.md
index 5de83eced..4097c0b53 100644
--- a/src/installation/guides/fde.md
+++ b/src/installation/guides/fde.md
@@ -46,8 +46,15 @@ Device      Start       End   Sectors  Size Type
 ## Encrypted volume configuration
 
 [Cryptsetup](https://man.voidlinux.org/cryptsetup.8) defaults to LUKS2, yet GRUB
-releases before 2.06 only had support for LUKS1. Therefore, it might make sense
-to force LUKS1 if you wish to achieve better compatibility.
+releases before 2.06 only had support for LUKS1.
+
+LUKS2 is only partially supported by GRUB; specifically, only the PBKDF2 key
+derivation function is
+[implemented](https://git.savannah.gnu.org/cgit/grub.git/commit/?id=365e0cc3e7e44151c14dd29514c2f870b49f9755),
+which is *not* the default KDF used with LUKS2, that being Argon2i ([GRUB Bug
+59409](https://savannah.gnu.org/bugs/?59409)). LUKS encrypted partitions using
+Argon2i (as well as the other KDF) can *not* be decrypted. For that reason, this
+guide only recommends LUKS1 be used.
 
 Keep in mind the encrypted volume will be `/dev/sda2` on EFI systems, since
 `/dev/sda1` is taken up by the EFI partition.