48GB left, Bitcoin Core say it's too low on space to enable Pruning!

I just had enough space to upgrade to Umbrel 1.5
Then upgrade a dozen app including Core v30

My advice should be to delete non core applications (IE ride the lightning, thunderhub or the ones you might have).

Prune or change the disk and reinstall later.

Time for a new SSD

I had the same problem. I managed to temporary fix it by reducing the ext4 % of reserved space for root from 5% (default) to 2%.