Execuse me, what is that? I am afraid that I don't have it.
Under the security tab, it would be either TPM, AMD fTPM or Intel PPT.
In below screen,
I have tried disable Firmware TPM, but didn't work.
I also tried adding iommu=soft after nomodeset, neither works.
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I just checked with my Zorin 15,3.
It is using 5,4 kernel.
I wonder if OP might want to test Zorin 15,3 to see if it make any difference. If it work, then we can confirm the compatibility problem with the kernel.
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I also just read that IOMMU must be turned Off in Bios, in conjunction with the grub parameter of iommu=soft
I am sorry, I did not know this.
Hi, I just tested with Zorin OS 15.3 Core 64bit.
It works for selecting safe graphics and Nvidia graphics (I didn't test the first item).
So, I think it is the problem of kernel version.
Well, so now, maybe the only thing I can do now is to wait the newer kernel.
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Thanks for confirming this.
We can then concentrate on the kernel issue instead of a wild-gees hunt 
If kernel 5.4 and 5.8 work but not 5.11... for me it is a regression.
I remember I had to stay on the old kernel due to such regression for my built in webcom. Unfortunately, it was such a long time ago, I forgot how to lock the kernel. @Aravisian, do you know how to lock the kernel?
Yes, you can use the apt-mark hold command to lock any package.
What I do not know is how the O.P. can install Zorin OS 16 given that hte kernel will not even allow the installer to boot.
The only way would be to update the kernel (rebuild the iso) so 5.11.10 is included. This should not break anything since nothing new is introduced, mainly bug fixes.
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I cannot really confirm the 5.11.10 kernel to work. The older kernel works, as the O.P. confirmed.
That exactly what I thought. It is a regression.
It might get fixed in the future kernel update (which was the case for my webcome) but at the moment, older kernel looks more promising.
Is it possible that you build a development iso file with kernel 5.11.10. and then I can test the installation for you?
Theoretically it is possible.
But I am not a developer nor programmer.
It is completely beyond my capability.
If you want to test the most advanced kernel, I suggest you to try either Fedora or OPenSUSE Tumbleweed.
Both are so called-breedingBleeding edge distros.
I'm in tears... bleeding edge?
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no...this you will have to explore on your own.
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You've just witnessed my Japanese accent.
After all those years - I still have a problem for L and R.
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Its OK FrenchPress, the Japanese accent prevents you from saying R, its not the end of the world. And it doesn't detract from how awesome you are, I think your pretty stellar.
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Meanwhile my French husband cannot pronounce H.
Yet we are communicating in English each other 
Today I tested the daily build of Ubuntu 21.10, which uses the kernel 5.13
Bingo!, the linux kernel 5.13 can work. The attached picture is the first screen of installation from Ubuntu 21.10 daily build.
But, I don't know if this means the full installation can be complete.
There is a way to update kernel in Zorin.
I think I need a help from @Aravisian - never done it myself.