Yes, Google Photos ended its free unlimited storage from June 1st, 2021. There were lots of perceptions made earlier behind this step. However, Google officials cleared their thought behind this.
The main reason is to make this platform more secure because at an estimate there are approximately 28 billion new photos and videos are uploaded every week. So, to secure our memories Google took this step to provide a high-quality storage facility.
Apart from this Google officials also stated that Google may delete your account in which you are inactive for the last 24 months including your Gmail accounts, Google Drive, and Photos.