That's just a line on a graph, though; what are you claiming about it?
It looks like there were 100-200k more deaths in 2019-2021 than normal. This matches the more detailed statistics (the number of reported deaths from COVID19) pretty well.
Are you proposing with your linear plot starting in 2010ish that it's not COVID19 causing those extra deaths, but something else, which has caused deaths to increase (from your line) by about 25K per year since 2010? What do you think that thing might be?
If that's the case, that's even more alarming than COVID!