(1) I would highlight that ONKYO AVRs as a likely must-to-avoid. It’s HDMI and related motherboard failures are legendary, to the point that the company grudgingly admitted the same. Here is a sampler epic lengthy thread of bad experiences
https://www.canuckaudiomart.com/forum/viewtopic.php?f=10&t=29836&hilit=Onkyo%2C+another+one+...
(2) ARCAM’s AVR problems were not a simple design deficiency and not any pure engineering FUHBAR. Rather it shared a common issue affecting most AVRs since they were outsourced to be built in the cheapest-you-can-go arena and that triggered the problems: made in China.
Thus was regrettably poor Chi-Fi AVR build quality that was twofold: Cheap quality components subbed in at the ChiFi plants and dodgy assembly workmanship. NOTE: The HDMI boards eventually fail on just about every ChiFi AVR.
It got so bad that ARCAM capitulated and moved back to the UK its top FMJ AVR unit production initially outsourced to China in face of mounting warranty claims .
The "top" build quality AVRs are regrettably uber-expensive, all north of $6k ( e,g ARCAM AVR 750, KRELL, CARY etc.) they perform top-shelf but AVRs change their CODECs and current models quickly become obsolete . The high buy-in cost in the face of rapid obsolescence make them a questionable buy for many of us.