Lenovo's new ThinkPad X1 Yoga is a very good business convertible, which got a major update with Tiger-Lake CPUs and 16:10 screens. However, there are still problems with the BIOS and the performance utilization when you stress CPU and iGPU simultaneously.
https://www.notebookcheck.net/The-ThinkPad-X1-Yoga-G6-is-a-very-good-Business-Convertible-but-there-are-still-some-software-issues.537790.0.html
I am experiencing this too, and it's making zoom calls while showing work in Figma almost impossible. Hoping for a fix soon, otherwise will need to return this otherwise amazing computer. (4k i7 vPro version, which is GREAT.)