Apk's been the default manager in snapshots since before the release of 24.10 so I thought it would have made it into stable branch by now. Looks like the switch has not happened just yet but it will definitely come "soon-ish" as it's already decided. Here's the main thread about it if you wanna learn more: https://forum.openwrt.org/t/the-future-is-now-opkg-vs-apk