I installed EndeavourOS on my 2nd nvme to test it out and I decided I want to install it on my main nvme since that one has a dram; is there a particular method so that I can install it completely clean on my main nvme without the boot partition being in the 2nd nvme like it is already for windows and linux? I can easily think of just removing the 2nd nvme during the installation, but that requires removing the graphics card too and I’m looking to not do that, really…
If I understood you correctly.
Fom the Wiki
Alongside : this will shrink the main system partition of the drive selected and add all needed partitions automatically, in case you can choose to create a new ESP in any case too also an existing one already would fit the minimum requirements:
This should also work with replace a partition I think.
In your case in the last picture you should choose new.
can you report
sudo parted -l