The list of the places for possible improvements:

1. Data collection > Template/Host import > Advanced options
2. Users > User roles > User role configuration form: Access to UI elements, Access to services, Access to API and Access to actions
3. Users > Authentication > LDAP settings > Servers > New LDAP server: Configure JIT provisioning
4. Users > Authentication > SAML settings: Configure JIT provisioning
5. Administration > General > Other: Authorization, Storage of secrets, Security, Communication with Zabbix server
6. Administration > Housekeeping: Events and alerts, Services, Users sessions, History, Trends, Audit log
7. Some other forms with a lot of options, for example, item configuration form, problem widget configuration form, could also be redesigned and separated into sections to improve usability.