Network switching link aggregatation vs VSSor VSL?

-What is the difference between VSS or VSL vs link aggregatation? Key points

Cisco Catalyst switches employ VSS/VSL technology to integrate two physical switches into a single logical switch. Both switches can be managed as a single unit because they establish a single management domain. The interconnection link utilized in a VSS arrangement between the two switches is called VSL.

Link Aggregation: The process of joining several physical links between switches or devices to create a single logical link is known as link aggregation, often referred to as port aggregation or EtherChannel. In order to enhance bandwidth and offer redundancy, it combines numerous links.