There are lots of examples in the use cases section of any low-code vendor, but in short, most internal tools are not in the horizontal categories you listed. They're in vertical, industry-specific categories at SES (Software-Enabled Services) companies.
A quick commerce startup, for instance, is unlikely to find an inventory tracking app off-the-shelf that fits their workflow, since existing ERPs are not going to fit their workflow.
A quick commerce startup, for instance, is unlikely to find an inventory tracking app off-the-shelf that fits their workflow, since existing ERPs are not going to fit their workflow.