I'm looking for a privacy friendly device to use as TV box which can play 4K HDR ~90GB movies without problem, do you guys think the orange pi 5 could handle this type of files?
The 3B was like peak RPi though. Nowadays unless you need the GPIO or the low power or form factor, it’s not worth it at all. You can get low-spec 3-5 year old off-lease office desktops for roughly the same price point as a top end RPi now, and they are commonplace and easily found in the secondary market.
Hell I just bought a really clean Ryzen 5 3500 laptop for $200. Only had 8GB mem and a paltry NVMe but these are cheap upgrades if needed.