emirb proposed and merged omacom/omarchy-iso#336 into quattro, requesting 4096-byte encryption sectors on both installation paths when the partition size permits them. It also fixes free-space partitions being one 512-byte sector larger than requested, which prevented that sector size from working.
hegjon supplied a three-install-per-side ThinkPad T460s comparison, reporting root-image writes around 2.46 seconds with 512-byte sectors and 2.16 seconds with 4096-byte sectors, alongside faster sequential reads. These are contributor measurements, not a universal performance guarantee. The change affects formatting new encrypted volumes; changing an existing volume's encryption sector size requires rewriting it.
