Recently found an "ipod photo cache" in my Pictures folder. Can I look at it? Can I delete it safely?

Running MacOS High Sierra on an iMac. I use this computer daily. It synchronises my iPhone X and iPad (recentish). I take photos on the iPhone, but not many on the iPad.

I'm moving from Photos to Adobe Lightroom as I really need more sophisticated photo management stuff these days, so I'm doing a bit of a cleanup of my exported pictures, just to free up as much space as possible.

Found a completely new folder from April 2020 called "iPod Photo Cache". It definitely wasn't there before!

It contains an "Apple TV Photo Database" and "Photo Database", and a bunch of folders which then contain files with the .ithmb extension, dating from June 2020 - ie, this month. June 10, in fact - the June long weekend in Australia, when we had visitors around (we're allowed to now! - it's MOST exciting).

Now, I know this is a backup/sync system for iPods. But no-one here uses iPods any more - that I'm aware of.

I'm pretty confident that if I delete the folder, it'll have no impact on any of my systems.

But now I'm curious, and I'd like to see what's in there before I delete it, if I can.

Photos, Lightroom and Affinity Photo don't recognise the ithmb extension. iTunes does, but nothing happens when I try to open them. Image Capture can't be persuaded to see them. I don't think I've got any other applications that are likely to see them.

Is there anything I can use to see these thumbnails?