Where does W10 store the equivlent of Boot.ini

I've got a multiboot system spread over 2 disks (1 SSD and 1HDD). Over the years I have moved the operating systems around using Partition Magic. The last move was to move W10 (ver 1909) to the SSD and W7 to the HDD.

I've been using EasyBCD to manage the boot menu but now the BCD entries don't correspond to the actual boot manager entries on the SSD. Changes I make to EasyBCD don't reflect on the boot menu (changed name and timeout)

I've discovered this by using BCDEDIT as this corresponds to what I see when I boot.

Where does W10 keep a record of these changes because I've looked in the root dir of all my drives and no files dates have changed to when I made the changes in EasyBCD or BCDEDIT.

I thought it must be Bootmgr orBootnxt but no change to the dates. So where does it store this info. It used to be in BOOT.INI which made it very easy to monitor.

I'm using BIOS based MBR for simplicity and the boot order in the BIOS is 1st SSD 2nd HDD. All my partitions still boot.