Pacman and yay are in conflict

It is just another AUR helper. They are all similar.

$ trizen --help

========================== Trizen AUR Package Manager ==========================

usage: trizen [options] [pkgname] [pkgname] [...]

Main options:

-S, --sync      : install packages (see: trizen -Sh)
-C, --comments  : display AUR comments for a package
-G, --get       : clones a package in the current directory
-R, --remove    : remove packages from the system (see: pacman -Rh)
-Q, --query     : query the package database (see: pacman -Qh)
-F, --files     : query the files database (see: pacman -Fh)
-D, --database  : operate on the package database (see: pacman -Dh)
-T, --deptest   : check dependencies (see: pacman -Th)
-U, --upgrade   : install built packages from /media/ssd1/AUR/trizen/arch or `pwd`

Other options:

-q, --quiet        : do not display any warnings
-r, --regular      : use only the regular repositories
--stats        : show stats about the installed packages
--nocolors     : disable text colors
--forcecolors  : force colors when not writing to STDOUT
--debug        : activate the debug/verbose mode
--help         : print this message and exit
--version      : print version and exit

See also:

trizen -Sh
trizen -Gh

:: Each configuration key is a valid option when preceded with '--'
:: Configuration file: /home/archer/.config/trizen/trizen.conf