An update does not touch the content of your /etc/fstab, your /home mount point is user-created, and in that sense you are solely responsible for the content.
Following Stable Update 2026-02-23, default DE and home directory changed?
Check the file (example)
$ stat /etc/fstab
File: /etc/fstab
Size: 676 Blocks: 8 IO Block: 4096 regular file
Device: 259,2 Inode: 9700186 Links: 1
Access: (0644/-rw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2026-03-01 06:41:00.719680705 +0100
Modify: 2025-12-19 15:36:01.433225439 +0100
Change: 2025-12-19 15:36:01.433225439 +0100
Birth: 2024-08-07 10:05:48.210566035 +0200