XOJO is a wonderful tool for rapid application development and especially suitable for customized ERP software. For example, my ERP application for a construction company has been running successfully for 8 years and is constantly being further developed.
https://jakobssystems.net/english/minicalc/
Some things have already been said about XOJO. As far as Windows is concerned, I can only add that the strategy and direction of Microsoft itself is anything but clear. Therefore, you should not be too hasty in your criticism of XOJO.
Where there’s light, there’s always shadow. As simple as the IDE is, the components and objects for GUI business applications are meagre. Example: Still no Date Picker:
To be able to work seriously in XOJO, you have to calculate the price for third-party components. This is the main point of criticism: the dependence on components. How many components have I seen in the years to come and go. I now only buy components in the source code, so that I am at least able to fix bugs or make adjustments. Lost time that I don’t actually have.
Another point: I recently had to work with matrix operations. Also here in XOJO there’s nothing built-in. The available information comes from Realbasic times and I was forced to reinvent the wheel and program the most important functions (like matrix multiplication and addition) all by myself.