Upload files to same ipfs folder repeatedly - is it possible?

From this tutorial https://www.youtube.com/watch?v=VglTdr0n5ZQ
i understood that we can upload a whole folder to ipfs, which is great,
but now arises a question of can this folder be modified later on?
as i understood if the content changes - the CID also changes in ipfs.
Thank you for any help!

you can not upload to the same folder after that from what I know

Thanks for the quick reply
this reference is the closest i’ve seen to solving this problem, but it has its downsides