This is the result of the implementation in version 4.0.1 Beta2.

Maybe you need to manually modify the opkg repositories in LuCI? Then check if your network can connect to these URLs.
src/gz openwrt_core https://downloads.openwrt.org/releases/21.02-SNAPSHOT/targets/ipq807x/ipq60xx/packages
src/gz openwrt_base https://downloads.openwrt.org/releases/21.02-SNAPSHOT/packages/arm_cortex-a7/base
src/gz openwrt_gl_feeds_common https://downloads.openwrt.org/releases/21.02-SNAPSHOT/packages/arm_cortex-a7/gl_feeds_common
src/gz openwrt_glinet https://downloads.openwrt.org/releases/21.02-SNAPSHOT/packages/arm_cortex-a7/glinet
src/gz openwrt_ipq807x https://downloads.openwrt.org/releases/21.02-SNAPSHOT/packages/arm_cortex-a7/ipq807x
src/gz openwrt_luci https://downloads.openwrt.org/releases/21.02-SNAPSHOT/packages/arm_cortex-a7/luci
src/gz openwrt_packages https://downloads.openwrt.org/releases/21.02-SNAPSHOT/packages/arm_cortex-a7/packages
src/gz openwrt_routing https://downloads.openwrt.org/releases/21.02-SNAPSHOT/packages/arm_cortex-a7/routing
src/gz openwrt_telephony https://downloads.openwrt.org/releases/21.02-SNAPSHOT/packages/arm_cortex-a7/telephony
src/gz openwrt_wifi_ax https://downloads.openwrt.org/releases/21.02-SNAPSHOT/packages/arm_cortex-a7/wifi_ax