when starting a vanilla vim session i get the following error on startup: E1187: Failed to source defaults.vim Press ENTER or type command to continue
To me it happened after the latest update from vim-8.2.3741 to vim-8.2.4328. No such error with vim-8.2.3741 and before.
i delete the file /etc/vim/vimrc (although i never modified the file) and remerged app-editors/vim-core-8.2.3741, which fixed the problem.
Please upgrade to >=app-editors/vim-8.2.4328-r1.