Is the HP OmniBook 3 good for business use?

Yes. It ships with Windows 11 Pro, has 16GB RAM and a 1TB SSD, and includes HDMI plus USB-A and USB-C for docks and monitors. It suits office and admin work rather than heavy creative or gaming tasks.

Can it run games or video editing?

Only lightly. The Intel integrated graphics handle casual and older titles at low settings, but modern games and 4K editing will be slow. A laptop with a discrete GPU is the better choice for those.

Does it have a touchscreen?

No. The 17.3-inch IPS display is a standard non-touch panel.

How heavy is it to carry?

It is a large 17.3-inch laptop, so expect it to be noticeably heavier and bulkier than a 14- or 15-inch model. It works best as a desk machine with occasional travel.

What ports does it have?

It offers HDMI, USB Type-A and USB Type-C, plus Wi-Fi. That covers an external monitor, a mouse and a dock without adapters in most setups.

For office work, browsing and light multitasking, yes. The RAM is the maximum configuration, so buy with that in mind if you expect very heavy workloads later.