Are there any major issues or poor-value parts in this gaming PC build?

Double-check the memory listing. The displayed price of about $600 CAD for 32 GB of DDR5-6000 is far too high and may be a pricing or listing error. A 2x16 GB DDR5-6000 kit with tighter timings, around CL30, is generally a better target for an AM5 gaming build.

The 750 W power supply should be enough for the listed components, though I’d stick with a well-reviewed unit from a reputable tier list. Also confirm that the case has the cooling and GPU clearance you need, and remember that the 7600X does not include a stock cooler if you switch CPUs.

The micro-ATX motherboard will work in the ATX mid-tower case, but it may look undersized inside it. More importantly, compare similarly priced boards from other manufacturers and check BIOS support, VRM quality, and available PCIe lanes before buying. The 8400F has more limited PCIe connectivity than some alternatives.

The biggest issue is the graphics card pricing. Nearly $1,000 CAD for an RTX 5060 Ti is extremely poor value when an RX 9070 XT can be found for roughly the same money and delivers performance closer to a higher-tier card. Reallocating the budget toward a faster GPU would make a much larger difference for gaming.

The Ryzen 5 8400F is also a weak choice at this price. It has less cache than chips such as the Ryzen 5 7600X, and its integrated graphics are irrelevant since you’re installing a dedicated GPU. A 7600X, a basic aftermarket cooler, and a stronger graphics card could provide substantially better performance for only a small increase in total cost.