Hello. My steam deck comes in tomorrow and I just found out about this wonderful remake yesterday. I was planning on streaming bloodborne to my new steam deck but If I can run this on there that might be even better since that wouldn't require any Wi-Fi and I could take this on the go. I believe that since the file is a .exe it is requited to use a program like wine to run it so when mine comes in I will do some messing around and see what I can get to work. If you have any sucess with using wine let me know and If I figure it out I will try to explain that way we can both get to playing.
I was able to get it running without Wine just by adding it as a non-steam game after a couple days of messing around with it—for some reason when I searched for the main .exe file in desktop mode it would not show up, so eventually I just went into Properties (after adding it as a non-steam game) and wrote in the target location manually. Even when I did that it didn't work for me though until I changed the compatibility option to force Proton 7.0-3, then it worked for me.