I only got this far thanks to PJ’s messages on this forum, so thank you very much for all your contributions. Here’s what helped me, in case it can help someone else:
Load and look at this thread, can you complete the steps listed modify the User_Setup_Select.h file and that is 50% of the battle , understanding you can only select the seeed version or Generic driver and separate touch screen driver. the seeed one has both.
I won’t go into why one would use the second option, suffice to say it is available.The BSP, Board Support package, for this it’s important to use the ones listed in the compiler outputs in all of the code examples. It is that combo that is the secret sauce to getting it working and even the order in which you load the LIB’s will effect soe configurations (resource allocation, i2c, SPI,the begins can conflict, explicitly defining begin params will get you around that also)
and just to show the potential, his amazing ROLO clone 
Code HERE
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This line #include <User_Setups/Setup66_XIAO_Round_Expansion.h> looks commented but its not, just some weird copy and paste formatting