Transfer files from a MacBook Pro with bad RAM?

I've got a MBP, mid-2015, 13-inch, running Big Sur with 6 GB a memory which my daughter poured water on. Now when I try to start it up, I get the black screen, three loud beeps, and nothing else.

I would like to transfer the files from this old machine to a new machine. Is it possible to use Target Disk Mode to do this? Or mount the old computer as a hard drive on the newer one?

Any suggestions appreciated.