Why does boinc-manager-7.20.2-1.el8.x86_64.rpm install two boinc manager shortcuts?

[kotenok2000]

It makes two files at /usr/share/applications/
boinc.desktop

[Desktop Entry]
Version=1.0
Type=Application
Name=BOINC Manager
Path=/var/lib/boinc
Exec=boincmgr
Icon=boinc
Terminal=false
Keywords=computation;science;
Categories=System;Monitor;GTK;
GenericName=BOINC monitor and control utility
GenericName[cs]=Monitorovací a ovládací nástroj pro BOINC
GenericName[de]=BOINC Überwachungs- und Kontrollprogramm
GenericName[pt]=Monitorização BOINC e utilitário de controlo
GenericName[pt_BR]=Utilitário de controle e monitoramento do BOINC
Comment=Configure or monitor a BOINC core client
Comment[cs]=Monitoruje a nastavuje klienta BOINC
Comment[de]=BOINC Basis Client konfigurieren oder überwachen
Comment[pt]=Configurar ou monitorizar o cliente básico do BOINC
Comment[pt_BR]=Configure ou monitore o cliente básico do BOINC

and boincmgr.desktop

[Desktop Entry]
Name=BOINC Manager
GenericName=BOINC monitor and control utility
GenericName[de]=BOINC Überwachungs- und Kontrollprogramm
GenericName[pt]=Monitorização BOINC e utilitário de controlo
GenericName[cs]=Monitorovací a ovládací nástroj pro BOINC
Comment=Configure or monitor a BOINC core client
Comment[de]=BOINC Basis Client konfigurieren oder überwachen
Comment[pt]=Configurar ou monitorizar o cliente básico do BOINC
Comment[cs]=Monitoruje a nastavuje klienta BOINC
Exec=boincmgr
Terminal=false
Type=Application
Icon=boincmgr
Categories=System;Monitor;GTK;
X-Desktop-File-Install-Version=0.23

[AenBleidd]

Since this looks like a package from the distro that was not done directly by BOINC team, I have no answer on that.
Currently we provide vanilla BOINC packages for various distros: https://boinc.berkeley.edu/linux_install.php