According to the current understanding of quantum field theory, an electron interacts with the Higgs field at all times, regardless of whether it is being observed or not.
The Higgs field is a fundamental field that permeates all of space. Elementary particles, such as electrons, acquire their masses through their interactions with the Higgs field. The Higgs field is associated with the Higgs boson, which was discovered in 2012 at the Large Hadron Collider.
In quantum field theory, particles are considered excitations of their respective fields. An electron is an excitation of the electron field, and it constantly interacts with other fields, including the Higgs field. These interactions determine the properties and behavior of the particle.
Observation in quantum mechanics refers to the act of making a measurement or interacting with a particle in a way that reveals information about its properties. The act of observation itself does not fundamentally change the way the electron interacts with the Higgs field. The interactions with the Higgs field are inherent to the electron's nature and persist regardless of whether it is being observed or not.
It's worth noting that the interpretation of quantum mechanics and the role of observation are still subjects of debate among physicists. However, within the framework of quantum field theory and the current understanding of particle physics, the interaction between electrons and the Higgs field is a continuous process that occurs both before, during, and after observation.