Sorry, at this point I actually find that hard to believe.
The error (see below) you posted in another (now locked) thread typically occurs when residue from former installations or installation attempts gets in the way.
error: device UUID xxxx" not found
mount: /new root cannot find VOID=xxx
Scanning through these threads, I see multiple attempts to get you to create a new GPT partition table. At this point (this is the ~160th post here) I simply don’t understand why you haven’t followed this easy suggestion up till now.
Same problem with your chroot-attempts. There seems to be a problem with following instructions.
tldr;
I greatly suspect everything you need to fix your issue has been addressed here!
Knowing how to chroot is a useful skill but shouldn’t be necessary when installing through calamares.
So, please, just “empty” the storage device you want to install to by creating a new GPT partition table and then do an “automatic” install with the EndeavourOS installer. Basically what you should have tried days ago.