Updating the system when there is not enouth space on the disc causes system to completely break beyond the point of detail

[LukyXspacE]

System details

And Ryzen 5 5500u in the Lenovo Thinkpad E14 gen 3 with 24gb of ram and two discs - one 500gb one one 256gb both m.2 using omarchy 3

What's wrong?

I tried an update but didn't notice that my system was out of space. The pacman -Syu failed and made my lunch menu fail. I restarted the system, logged in and it fell down to systemd recovery. I tried freeing up space (I freed like 12gb) I tried finishing the update using systemd recipe very, but t that one doesn't know what internet is, so u booted up my arch live iso, mounted the system there and tried updating, but even though I had 12gb free the system didn't notice that and said that I need at likest x KB free and that i don't have that. So I tried the restore a previous snapshot. With that I actually managed to get to hyprland but restoration doesn't work and the system is unstable and I cannot systém update as well coz it still thinks I don't have enouth space. Luckally I can recover my data and I know this is kinda my mistake but there could be a check if the update fits or like a deamons that won't let me fill my disc to the point that my system will stoped working. (Also sorry for my bad english)

[LukyXspacE]

Also I think that the disc being full is the issue but I may be wrong. The logs said cannot wrote to disc, disc too full and failed to mount /boot.