IPads, even the iPad Pro, are not a full blown laptop/desktop computer replacement.
These devices are still companion devices.
So, if your expecting an iPad to perform like a laptop or desktop computer, this will not be the same experience.
There is only external keyboard and stylus support under iOS.
NO trackpad/mouse support under iOS.
You need to use special external storage devices for iDevices as well rely on some limited “cloud” services support.
If you bought an iPad without identifying why you needed one, then you really do not know if you have purchased an iPad with enough storage for your needs or not.
I am an artist and drawing files can be large, so I purchased a 128 GBs model and this seems to be fine for me for the last 2 years.
I have 64 GBs iPads and my iPad 2 is getting full with only 17 GBs of free data storage space left.
My 128 GBs (effective storage 117-118 GBs) iPad Pro has about 35 GBs of free data storage space left, currently.