Tatooine, though materially insignificant, is “sacred” within the Force.
Anakin’s last thoughts as he smiled at Luke were of how much Luke reminded him of Padme.
Each version of the OT exists in an alternate timeline from each other. The theatrical versions are in their own canon, with any pre-1997 EU content optionally included. The 2004 and 2011 versions exist in the same canon as the prequels and all of the EU. The 2019 versions are in the Disney canon.