Symantec Endpoint Protection 14.3 is indeed "better"—it is the most mature version of the classic SEP architecture. However, the industry is moving toward fully cloud-native XDR solutions, and SEP 14.3 feels like the last, polished guard of an old empire.
SEP 14.3 RU10 includes several technical enhancements that improve its effectiveness and efficiency: symantec endpoint protection 143 ru10 better
RU10 mandates a site-level default client password to prevent unauthorized stopping or uninstallation of the agent. Broadcom Techdocs Optimization: Symantec Endpoint Protection 14