Is the HP 27-cr0054 good for gaming?

Only for light or older games. It uses integrated Radeon graphics and a 90 W supply, so it is not built for modern titles at high settings.

Can I upgrade the memory and storage?

HP lists support for up to 32 GB of DDR4, so you can add RAM. The 1 TB SSD can be swapped for a larger drive, though opening an all-in-one is more involved than a tower.

Does it have a touchscreen?

No. The 27-inch display is non-touch.

What ports does it have?

Three USB-A ports, USB-C, one HDMI and an RJ45 Ethernet port, plus Wi-Fi and Bluetooth. There is no optical drive and no memory card reader.

What comes in the box?

The all-in-one unit with its stand, a power adapter and cable, and a keyboard and mouse in most retail bundles. Confirm the bundle with the store.

How does it compare with a tower desktop?

You give up easy upgrades and a dedicated graphics card, but gain a 27-inch screen and a single unit on the desk. The 8-core Ryzen 7 and 1 TB SSD cover office work and light editing.