Almost all applications, which are compatible with Debian Bookworm will work on Q4OS Aquarius. You can look in their websites for their compatibility with Linux Debian. For example SoftMaker FreeOffice:
Also, you can install Synaptic Package Manager from Q4OS Software Centre, and install necessary applications from Synaptic.
Just keep in mind, that nowadays, a lot of applications does not work on 32-bit hardware!