I have been actively looking for a job. I've seen job postings of positions that have been posted in company websites since February/March 2020. It is still up and in some sites such as Indeed of Glassdoor, they would appear as a posting that occurred a few days ago. What does this mean? Does it mean the position isn't filled yet and the company is looking or does it mean it is filled but the employer, maybe due to the lack of workforce capacity due to COVID, just has not taken down the post in their website?