Question about HP Envy x360 14-fc0742nz

Yes, you can connect a Logitech StreamCam, an Elgato Wave 3 and an Elgato Game Capture 4K S to the laptop via a USB-C hub, as long as the hub has enough USB ports and the necessary bandwidth. The HP Envy x360 14-fc0742nz supports USB-C with Power Delivery and DisplayPort, and with a suitable USB-C multiport hub, such as the HP Universal USB-C Multiport Hub, you can connect multiple devices simultaneously. Make sure that the hub has at least three USB ports (USB-A or USB-C) and that the data transfer capacity is sufficient for video and audio streaming.