You can stay on the old one if you prefer - if you're not having any issues then totally understandable. There are many bug fixes/improvements including to the Geo-Filter.
Thank you all for the support.
I just wanted to share what finally fixed the speed issue for me.
I removed the cloned MAC address (I had previously entered the Huawei router’s MAC) and re‑entered the original Netduma R3 MAC address in WAN > Advanced.
After a reboot, my speeds immediately returned to 350–400 Mbps.
Everything is working perfectly now.
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