My 100GB SSD is almost full according to "df -h" and I keep getting messages about it. I understand that Ubuntu 22.04 desktop only requires 25GB. I have no video files and only a few photos. I'm using Thunderbird for email with a small number of attached files. Should Ubuntu 22.04 desktop need 100GB, and if not how I find and rectify the problem?
judith@Laptop:~$ df -hFilesystem Size Used Avail Use% Mounted ontmpfs 782M 3.8M 779M 1% /run/dev/sda7 114G 106G 1.4G 99% /tmpfs 3.9G 0 3.9G 0% /dev/shmtmpfs 5.0M 4.0K 5.0M 1% /run/lock/dev/sda1 256M 9.2M 247M 4% /boot/efitmpfs 782M 164K 782M 1% /run/user/1001