XC cloud - fleet

Yes fleets will soon be removed as the next step was Secure Mesh sites (Create Secure Mesh Site | F5 Distributed Cloud Technical Knowledge) and now it is Secure Mesh sites v2 (Create Secure Mesh Site v2 | F5 Distributed Cloud Technical Knowledge).

So the history order is Fleet > SMS > SMSv2 , so use SMSv2 CE as you will have to migrate to it sooner or later. I know XC is constantly changing stuff 😄 Migrate Legacy CE Sites to New Secure Mesh v2 | F5 Distributed Cloud Technical Knowledge

Also to unite multiple CE sites ( a CE site could be 1 CE or even 3 master CE in HA and there could be many worker CE as well making up the site) a virtual site is used to group the CE sites not fleet as fleet is just used to attach standard configuration to the CE site but it should not be used anymore. You can even group 2 standalone CE sites in sort of HA but suggest first having strong understanding of XC before going there, so this is just for info: Create Two Node HA Infrastructure for Load Balancing Using Virtual Sites with Customer Edges | F5 Distributed Cloud Technical Knowledge