can you connect the epson perfection 4490 scanner photo with Mac OS X 10.15?

Download the ICA 5.8.8 driver from https://www.epson.eu/support?productID=1559&language=en&os=36#drivers_and_manuals and see the following from that same site:

Epson makes drivers available to download from the Support section of the Epson website. Some earlier products are not supported by a full Epson scanner driver in the latest versions of OS X. However, basic scanning is available using Image Capture application (ICA) which is already built into your Macintosh operating system.

Epson knows why, and the ICA (Apple Image Scan) driver for this device on Canon's site for Catalina was released in Dec. 2019. Foxfifth's link points to it. If that driver does not work, you are done, as even VueScan Professional requires a functional Epson dirver before it supports this scanner.

Epson support has drivers and other support for that scanner with Catalina. See: https://www.epson.eu/support?productID=1559&language=en&os=36#drivers_and_manuals