The WAX202 is a good economical choice as long as you recognize its MT7621 CPU is only fast enough to handle CAKE SQM/QoS at ~100Mbps, Wireguard VPN around ~150 Mbps and OpenVPN ~25 Mbps; and less than this depending on how busy the CPU is handling WiFi or a PPoE ISP connection (this type of ISP connection uses more CPU). But as long as you use its hardware offloading (hardware offloading and SQM/QoS cannot be used together) and don't need fast SQM/QoS or VPN, then the WAX202 should handle routing near Gbps speeds just fine. This is what makes MT7621 based routers great low cost choices.
The WAX206 would be a better choice if you can find one for not much more cost though. The WAX206 has a much faster MT7622 CPU that will give you better future proofing and more options.