Right now, you need to remove all the leaves in order to have another tree growing up, and farming wood take ages.
I didn't see any changes in the behavior of kelp since 1.14. I know that the changelog says that its growth speed has been restored, but it isn't. It takes ages to grow and all the farms are useless now.
I've had problems uploading maps around 100 Mb, but with bigger maps it's simply impossible. It doesn't matter how many times I try it, it never works.
Paying for a Realm that I cannot use it's not a great business...