I really wish GL iNet actually fully tested their “stable” firmware releases. After years of using their routers, it’s clear that they don’t. If you browse this forum, you’ll find many cases where a “stable” build was pulled from the download site because it was broken.
In my experience, for any of their firmware, assume it may not work and plan to spend a few hours testing it yourself before putting it into production.
Here’s just one of many examples from past posts: On the n300, a router with only one Ethernet port and 2.4 GHz Wi-Fi, the 3.211 “stable” firmware was released with the Ethernet port completely non-functional.