Will changing from Catholicism to Orthodox Christianity impact my salvation? Will it change my walk with Christ?

Thats above my pay grade, however it will likely impact your your relationship with God. The differences are not something can be compared and contrasted on a spreadsheet of Christianity, it’s a very different way of thinking.

My apologies for not giving you enough details. Ive been raised within the faith and therefore have trouble explaining it to those who were not (including my own convert spouse) and so usually tell people to come and see. However, since that is a bit less approachable I defer to my convert siblings here to more adequately explain.