I’d started Shadowlands Dilettante by having one alt on each of the four covenants, and it just occurred to me that those achievements aren’t account wide. Will I still get credit, or do I need to start switching covenants to have a chance at this?
The dilettante meta-achievement can be done on four characters. I recently completed it this way.
One veilstrider achievement that is required to be on one character that I found so far is the Torghast Master of Torment achievement. All sub-achievements in that category need to be on one character to trigger it, even though they are listed separately and you can see that other characters achieved it. I reported it as a bug because it is inconsistent with other similar achievements, so hopefully they will fix it if they haven’t already. I went and did it all on one character in the meantime.