You can use the rollback function:
https://help.getsol.us/docs/user/package-management/history-and-rollback
Open terminal and type:
eopkg history
(I noticed the schrollbar isn't working, so use the keyboard 😉)
Command to rollback:
sudo eopkg history -t number
(If you want to cancel use strg+c)
Solus package manager has a "exclude" function, so you could update the system without updating libreoffice via the terminal.
eopkg search libreoffice
outputs:
libreoffice-dbginfo - Debug symbols for libreoffice
libreoffice-draw-help - LibreOffice Office Suite
libreoffice-math - LibreOffice Office Suite
libreoffice-base-help - LibreOffice Office Suite
libreoffice-writer - LibreOffice Office Suite
libreoffice-base - LibreOffice Office Suite
libnumbertext-dbginfo - Debug symbols for libnumbertext
libreoffice-common - LibreOffice Office Suite
libreoffice-calc-help - LibreOffice Office Suite
libreoffice-all - LibreOffice Office Suite
libreoffice-calc - LibreOffice Office Suite
libreoffice-impress-help - LibreOffice Office Suite
libreoffice-writer-help - LibreOffice Office Suite
libreoffice-common-help - LibreOffice Office Suite
libreoffice-math-help - LibreOffice Office Suite
libreoffice-common-dictionaries - LibreOffice Office Suite
libreoffice-impress - LibreOffice Office Suite
libnumbertext - Number to number name and money text conversion libraries
libnumbertext-devel - Development files for libnumbertext
libreoffice-common-kde-integration - LibreOffice Office Suite
libreoffice-voikko - A multi language spellchecker, grammar checker and hyphenator extension for LibreOffice. It uses libvoikko for all linguistic operations.
libreoffice-draw - LibreOffice Office Suite
But I dunno what packages need to exclude.
Command to update via terminal:
sudo eopkg up
With "exclude"
sudo eopkg up -x libreoffice-impress -x libreoffice-impress-help
I doubt this will work and there is also the possibility that other packages cause the slow start...