I was afraid that this was the case; I’ve been trying to pare down on packages that I only occasionally use to reduce the complexity of my config, but this doesn’t seem like a good thing to compromise on.

Thanks for the link; I read this discussion as well but couldn’t be too sure about the impact. I made a copy of the yaml-ts-mode.el and switched it to be derived from prog-mode, but it had no effect on the indentation sadly.

(add-to-list 'display-buffer-alist
             '("\\*sly-mrepl"
               (display-buffer-at-bottom)
               (window-height . 12)))
(add-to-list 'display-buffer-alist
             '("\\*Calendar*"
               (display-buffer-at-bottom)))
(add-to-list 'display-buffer-alist
             '("\\*shell:"
               (display-buffer-below-selected)
               (window-height . 12)))
(add-to-list 'display-buffer-alist
             '("\\magit:"
               (display-buffer-same-window)))
(add-to-list 'display-buffer-alist
             '("\\*Man"
               (display-buffer-same-window)))
(add-to-list 'display-buffer-alist
             '("\\*Help"
               (display-buffer-same-window)))
(add-to-list 'display-buffer-alist
             '("\\*helpful"
               (display-buffer-same-window)))