You should try OnlyOffice. It is very similar to MS Office and fully compatible with Microsoft formats. It has fully replaced MS Office for me for all office work. Also it can be easely integrated with your private NextCloud. You can install it from Flathub.
Edit: it also lets you edit and convert pdfs like Adobe Acrobat Pro
Always use /dev/urandom for this purposes. /dev/random will be locked if it doesn't have enough entropy. It is good for getting some random kilobytes for cryptography but not 2 TB of random data for disk wipe.
If you install virt-manager on Debian via apt it will have full system acres and also automatically install and configure libvirt, so this method is preferred.
We can use initrd for Linux kernels 2.4 and lower. Conversely, initramfs is for kernels 2.6 and above.
Since on all modern system initial filesystem is tmpfs sometimes it is confused and initramfs is called initrd (for example: in grub to load initramfs you use initrd command).
Did you mean forms mode?