I usually have 8-10% (10-12MB) available Flash memory left with Marble. Is this normal?
Even the available RAM is quite low even without using VPN/TOR and other applications.
I know Marble has small Flash memory. I'm just a bit surprised that even with no Luci, VPN, or other extra plugins installed, the Flash memory seem to be maxed out by just the default stuff.
I have AdGuard Home enabled and have ~500 rules. From my trial and error, 500 rules is the limit to prevent "permanent freeze" in Marble that usually needs resetting everything just to escape the permanent freeze.
I also use the Firmware 4.7.15 in Marble.



