In your other thread you mentioned gaming and total war titles. Iris graphics are still integrated graphics. They're not what you want for gaming.
Even if they're 100% better than your 6100 graphics, that's like saying this car with 2 wheels has 100% more wheels than this car with one wheel. i.e. it's still rather lacking...
Check out:
News, Reviews and other Informations about Laptops
www.notebookcheck.net
Or this:
See the best Graphics Cards ranked by performance.
benchmarks.ul.com
You can see Iris graphics are, while decent for integrated graphics, still many, many times weaker than even the most modest modern entry level graphics card for gaming, the GTX 1650.