When single AP is enough I would recommend home AIO router as best price/performance option. You already have above average number of clients for a typical household and may experience disconnections from single AP. Wireless cameras on 2.4GHz may use the entire channel bandwidth when single radio serves all 2.4GHz devices. Don't look at the price and speed test only, but also plan future expansion options.
Home AIO routers are cheaper, but disposable at EoL. You probably noticed already Trend Micro engine used in ASUS firmware requires data sharing to 3rd party company. This same bwdpi engine on ASUS BE-class routers is broken. If you need App based device prioritization or parental controls it may not work as you'd expect. AiProtection signatures in Asuswrt will update around once a month vs. daily in UniFi OS.
Choose whatever you like better and fits your budget and use case. Don't overpay for hardware and don't judge system performance based on speed test to phones and tablets. You have missed the sale for UCG-Max and could fit under CAD1000 with 2x U7 Pro for your wireless devices and 2x USW-Flex-2.5G-5 for your wired devices for well balanced 2.5GbE UniFi system with full set of control and tuning options.
All the best in 2026!