Can I change the Boot Slot from Fastboot with a command?

How to change Android system boot slot form A to B fastboot change slot But I want without fastboot command My usecase is the bootloader need to check the currect active slot and set the proper suffix How can I fastboot change slot I tried the fastboot update on windows on my thor device and am getting this error: Setting current slot to 'a' OKAY Finished

fastboot getvar currentslot Les changements: General: – Added a shortcut to change the backdrop color for sprite extraction – Fixed QuickSave 0-9 slot shortcuts not working