Actually I have not made any local changes to config files, they are as provided by packages. This is my list of emacs-related installed packages:
elpa-restart-emacs 0.1.1-2 all [installed] emacs-bin-common 1:26.1+1-3.2 amd64 [installed,automatic] emacs-common-non-dfsg 1:26.1+1-1 all [installed] emacs-common 1:26.1+1-3.2 all [installed,automatic] emacs-el 1:26.1+1-3.2 all [installed,automatic] emacs-gtk 1:26.1+1-3.2 amd64 [installed,automatic] emacs-intl-fonts 1.2.1-10 all [installed] emacs-jabber 0.8.92+git98dc8e-4 all [installed] emacs 1:26.1+1-3.2 all [installed] emacsen-common 3.0.4 all [installed,automatic] emacspeak-espeak-server 49.0+dfsg-2 amd64 [installed] emacspeak 49.0+dfsg-2 all [installed] maxima-emacs 5.42.1-1 all [installed] xemacs21-basesupport 2009.02.17.dfsg.2-4 all [installed,automatic] xemacs21-bin 21.4.24-7 amd64 [installed,automatic] xemacs21-mule 21.4.24-7 amd64 [installed,automatic] xemacs21-mulesupport 2009.02.17.dfsg.2-4 all [installed,automatic] xemacs21-support 21.4.24-7 all [installed,automatic] xemacs21 21.4.24-7 all [installed]