Using a resume template is not inherently bad, as long as it is used in the right way. Resume templates can provide a useful starting point for creating your resume, and can help ensure that you include all of the necessary information and sections in your resume. However, it is important to tailor the template to your specific experiences and skills, and to make sure that the format and content of your resume effectively highlight your qualifications and make you stand out to potential employers.
If you use a resume template without making any modifications or customizing it to your own experiences and skills, your resume may come across as generic and may not effectively showcase your unique qualifications. On the other hand, if you use a template as a starting point and then make modifications and customizations to ensure that your resume is tailored to your specific experiences and skills, it can be a valuable tool for creating a professional and effective resume.