I strongly implore you to watch the documentary The Fall of Minneapolis. It’s available to watch on YouTube.
Chauvin was completely and utterly fucked over and thrown to the lions.
The very restraint he used, which the chief of police testified was not approved, was right there in their training manual (which the court refused to be admitted as evidence).
George Floyd had a significant amount of fentanyl (11ng/m - the coroner reported that he had previously reported fatal overdoses in individuals with levels as low as 3ng/m) and methamphetamine in his system, which he is believed to have ingested during his initial interaction with the first police officer on scene. He is shown on body cam footage putting something in his mouth and swallowing - which was the exact same thing he did during a previous arrest and almost overdosed.
He also had hypertension, coronary heart disease and an enlarged heart.
It should have been involuntary manslaughter at worst - this was no more than a bargaining chip to try to restore order after serious civil unrest.