For one, the 32 Bit Application for this printer will not function period.
32 Bit Anything was stopped with macOS 1014 Mojave.
macOS 10.15 and all newer version of macOS Only support everything 64 Bit and there is no workaround.
from Whom this notification came from would probably be from Epson
Like below reading Epson Drivers specific to your printer.
Be sure to choose the Correct version of macOS as it tends to default to macOS 10.15 and not to macOS 12
https://epson.ca/Support/Printers/All-In-Ones/WorkForce-Series/Epson-WorkForce-Pro-WF-3720/s/SPT_C11CF24201