Great, thank you very much.
Please read in particular the section on managing ‘photo sets’. It clearly states images deleted from a phot set will be removed from Flickr when you next tap publish.
Publish from Lightroom Classic CC to Flickr
The Publish Services panel in the Library module allows you to send photos directly from Lightroom Classic CC to Flickr. First, establish a connection between Flickr and Lightroom Classic CC, then create a publish collection of photos to publish. Finally, upload the photos. You can also make and view Flickr comments in the Comments panel in the Library module of Lightroom Classic CC.
Create a Flickr connection
The Publish Services connection allows Lightroom Classic CC to communicate with your Flickr account.
In the Publish Services panel on the left side of the Library module, click the Flickr connection Set Up button.
The Publish Services panel
In the Lightroom Classic CC Publishing Manager dialog box, look under Flickr Account and click Log In.
Follow the prompts to allow Flickr to communicate with Lightroom Classic CC.
Specify additional export options in the Publishing Manager:
Publish Service
A description that appears next to the connection name in the Publish Services panel.
Flickr Title
Set photo titles using a photo’s filename, IPTC Title metadata, or Leave Blank. Choose the preferred behavior when updating photos: Replace Existing Title or Leave Existing Title.
Note:
For information on File Naming, File Settings, Image Sizing, and other options, see Export files to disk or CD.
(Optional) To change your Flickr connection settings at any time, click the + button at the top of the Publish Services panel and choose Flickr > Edit Settings.
Add and manage photos in a Flickr photoset
Photos that you want to upload to Flickr are managed in a publish collection, also called a photoset.
To create a Flickr photoset, right-click (Windows) or Control-click (Mac OS) the Flickr connection in the Publish Services panel and choose one of the following:
Create Photoset
A collection or set of any photos that you choose that resides in your Flickr Photostream.
Create Smart Photoset
A photoset based on rules that you define. See Work with smart collections.
For a regular photoset , drag photos from the Grid view to the Flickr photoset in the Publish Services panel. If you create a smart photoset , the photos that match your rules appear in the collection.
To manage your Flickr photosets, do any of the following:
To edit, rename, or delete a photoset, right-click (Windows) or Control-click (Mac OS) it in the Publish Services panel and choose Edit Collection, Rename, or Delete.
To remove an unpublished photo from a regular photoset, select it in the photoset and press Delete.
To add or remove photos in a smart photoset, change the rules of the smart photoset.
To view the photos in a photoset, select the photoset in the Publish Services panel. The photos are organized in the following categories, or queues, in the image display area:
New Photos To Publish
Photos that have not been exported.
Modified Photos To Republish
Photos that were edited in the Library or Develop module after they were exported.
Published Photos
Photos that have not been modified since they were exported.
Deleted Photos To Remove
When you press Delete to remove published photos from a photoset, Lightroom Classic CC marks them as Deleted Photos To Remove. They are removed from the photoset in Lightroom Classic CC and from Flickr the next time you click Publish.
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