Qualitative designs are helpful for exploring dynamic and complex phenomena that is difficult to measured.

For instance, to examine effects of COVID-19 on HRM. focused on the experience and perceptions of individuals or groups who have faced COVID-19 challenges in their HMR examples managers, employees or customers, these qualitative designs can give rich insights into the challenges and opportunities created for HRM during COVID.

The justification for a technique, whether qualitative or quantitative, is rooted in the purpose and research question. You should also consider alternatives and report in your dissertation how you made your choice. If you pick phenomenology, then you want to know the lived experiences from the perspective of the participants (as opposed to building theory in grounded theory, theming in thematic analysis, etc.). While phenomenology has many strands and flavors, there are two major camps: descriptive and hermeneutics. Clearly specify and follow which strand you use.

I suggest you to have a look at these papers :

Article Medium-term consequences (5 years) of the Covid-19 crisis on...

Book In what ways will work evolve in the next five years? Synthe...