For what it's worth, I use my desktop for work and gaming. All AMD system for the past 3 years (CPU/GPU). No glitches or stuttering. Windows 10 with fTPM disabled since I have no interest in Windows 11.
Been AMD only for CPU in my desktop the past 15 years or so and haven't had these glitch/stutter issues.
All of this anecdotal, but I just find it odd you've never had a "stable glitch-free AMD system." But it might vary depending on motherboard, motherboard OEM and motherboard chipset. (Was on Asus X470, now on MSI X570.)
A long time ago, trying to play a Battlefield 1942 star wars mod with my Radeon 9700pro would crash my computer after ~10 minutes. Base game was fine. EoD was fine. Everything else was fine. Except this mod. No amount of tweaking helped. Later, upgrading to a 9800pro, problems disappeared. I didn't want it to be like that but it did.
My thinking is that it's not the AMD CPUs that are the problem, but rather the Intel chipsets and chipset drivers generally seem to have fewer issues. It could also be that Microsoft and others do more testing on Intel-based systems.
For what it's worth, I also indirectly support quite a lot of corporate systems, and we've had a fair amount of flakiness with AMD Thinkpads. Not every laptop has issues, and not in every situation, but we get issues significantly more often for the AMD machines - this is visible clearly in the stats we keep. Anything involving docks seems to be particularly problematic. It could be that Lenovo are just making terrible devices and I'm unfairly blaming AMD - but the Intel ones are rock solid.
Also I've used TPM for years, possibly since Windows 7 I think, in order to get full disk encryption with Bitlocker. More recently I've been playing with remote attestation.
Installing a TPM module and then failing to get the computer to boot suggests that they don't know how to use the TPM in concert with an operating system. It's possible they don't even know what TPM is for or why they enabled/installed it in the first place.
Of course I know how to use a TPM and why one might use it. It's rather unfair of you to assume that I don't because the hardware I bought doesn't function properly.
The computer failed to POST after I put in the dTPM, nothing to do with the OS. It's either an issue with the dTPM or the motherboard, but I couldn't figure out what the problem was and didn't want to keep spending money. The motherboard manufacturers provide very little information about how their dTPM interfaces work, and nowadays it can be difficult to find genuine OEM dTPMs due to Win11-related stock shortages.
Been AMD only for CPU in my desktop the past 15 years or so and haven't had these glitch/stutter issues.
All of this anecdotal, but I just find it odd you've never had a "stable glitch-free AMD system." But it might vary depending on motherboard, motherboard OEM and motherboard chipset. (Was on Asus X470, now on MSI X570.)