Hi Lana,
The easiest way is to put the photos back into Google Photos from your PC, then let the Google Photos app on your phone sync them down. You do not need to move the zip straight onto the phone.
On your Windows PC, right click the .zip and choose Extract All, then finish the wizard so you have a normal folder full of images. In a browser on the PC, open photos.google.com and sign in with the same Google account you use on the phone. Click Upload at the top right, choose Computer, select the extracted photos or the whole folder, and start the upload. Leave the tab open until it shows the upload is finished.
On your Android phone, open the Google Photos app, tap your profile picture and confirm it is the same account. Make sure Backup is On. Go back to the Photos tab and pull down to refresh. The images will appear sorted by their original dates, so scroll back to 2024 and earlier to confirm they are there.
If you would rather have the pictures saved into the phone's local Gallery app instead, or you are using iPhone... tell me and I will walk you through a new path.