emacs-auctex
AUC TeX: An Emacs Extension
These macros make it easier for you to write TeX documents with GNU Emacs. Documentation can be found under: /usr/share/doc/packages/emacs-auctex/ and in the dvi files math-ref.dvi and tex-ref.dvi (reference cards) and in the info file auctex in emacs info-mode. AuC TeX is integrated in XEmacs 19.15 and higher, so these packages may not be installed concurrently. Note that the binary formats of the byte-compiled lisp files of the two emacs editors are incompatible, so you cannot use this package for XEmacs.
There is no official package available for openSUSE Leap 15.5Distributions
openSUSE Tumbleweed
SUSE SLE-15-SP1
Unsupported distributions
The following distributions are not officially supported. Use these packages at your own risk.