The future of Windows 11 on x86-64 based systems

First of all, I love the design and modernisation approach Microsoft first had with the idea of Windows 11, and i'm sure we all know what's been happening lately with the latest OS Patches, so here's my question: Is Windows 11 on x86 fundamentally repairable from the ground up, or are its stability issues baked into legacy architecture? Why does Windows 11 on ARM appear so much more stable compared to the current x86 experience, and what concrete steps are being taken to close that gap? And what is Microsoft's strategy to bring back trust from long time users who've switched over to other platforms?
Also, to finish my question, let's say that Microsoft will hopefully fix and improve the overall experience with Windows 11, will the user in the future have more flexibility and freedom over customisation, telemetry and privacy options, and even account options in future improved Windows 11 updates?