I have a curated collection of scanned family photos going back over a hundred years, and I presently use Mylio as my management tool for it because it works the same on all my devices/computers. The photos have their dates set to the ‘original’ date rather than the ‘scanned’ date, and the folders are named for the original year and then context (a broad place, or family grouping). I started scanning them (mostly from negatives) many years ago, and it would have been useful to record the scan date as well because they weren’t done in order. Scanning technology is now rather better than it was then, so the scan date would have indicated which ones would benefit from re-scanning without having to look at them all again!
I have a variety of keywords from previous management tools, but Mylio won’t filter the view based on keywords, and searching is awkward, so I have duplicated some common keywords using ‘fake people’ whose names start with ‘@’ (which I think of as ‘contexts’ - certain groups of people, or broad geographic locations). This way I can use the People filter instead of keywords. You can find more about this here.
I don’t share my Mylio account with anyone else. As @jimre suggests, I export images for sharing, so that other family members can import them into whatever app they fancy, or just view them in a web browser. Categories and album membership don’t get included in exported images; people and keywords do.
We presently use OneDrive as the sharing mechanism (only because it was essentially free, since I have a family Office 365 subscription), but I have found it problematic - it seems that Microsoft messes with the keywords, even though I have their ‘smart tagging’ feature turned off. It is best to get everything right before uploading to OneDrive, since bulk updates seem to get reverted within a few minutes. It’s probably part of their accidental deletion mitigation, but really not helpful in this case. I think we will be shifting it all elsewhere soon.
I don’t really use Mylio’s calendar, events, maps, or albums any more. I know the calendar view is important to the Mylio team, but it just doesn’t work for me as an entry point to the collection, as I have overlapping ‘threads’ of images from family members scattered around the world. Maps doesn’t help either, as these family members move. Albums are too static - I’m adding photos almost every day - and would need to be ‘smart’ (based on searches) to be any use. I generally use either the ‘All Photos’ view with filters (for management), or the ‘Folder’ view (when adding new images).
Categories are currently only partially useful to me, because of editing issues causing them to ‘leak’ if set on specific images. When inherited from folders they work fine, and I presently use these to provide broad time range filtering.
I take the long view on all this - Mylio is the latest in a line of management tools I have used, of which Apple’s Aperture was the longest-lasting - and so everything I do has to be as ‘standard’ as possible. This means I still maintain keywords for people, places, contexts, animals, and so on - even for ratings, in case of import to Apple Photos, which doesn’t support proper ratings. I find this duplication necessary but annoying; I wish Mylio had keyword filtering.
I hope this helps!