Hard to tell.
there is a "life hack" for making a DIY macro lens using a drop of water. If you phone is water resistant or waterproof I would try it.
OR
a local dollarstore may sell or amazon does sell a clip on lens. That's what I use, it does 15x macro pretty well.
https://www.instructables.com/How-to-make-a-water-drop-macro-lens/
https://www.amazon.com/UKCOCO-Universal-Portable-Camera-Fisheye/dp/B07QXR6MQH/
1st pic, cant make out a lot
2nd pic, kinda looks like baby trichomes on a damaged leaf.
3rd pic does not look like a worm to me, more of a rouge fibre. if you watch it for a min it should keep its same shape and not move or react to stimuli.
4th pic, the white spot could be concerning, can't tell what it is. maybe bug maybe nothing.
5th pic, could be a egg or something on the under side of the leaf next to the dead spot.
6th pic, I think the dots your seeing a small micro amount of your medium splashing back up onto the leaves when watering. try brushing them off with a small paint brush and monitor them for movement like the fibre or supposed worm
7th pic, I can see its stresses, but I feel this is a root or PH issue with the medium its self not a pest.
Only time will tell and better tools to monitor the situation.
this is my macro lens at work.
https://bucket.
growdiaries.com/static/post/photo/31185/1692039_fastbuds-blackberry-grow-journal-by-m0usefastbudsblackberry.jpg
spider mites under macro
https://www.google.com/url?sa=i&url=https%3A%2F%2Frollingmountainkush.com%2Fjuly2019%2F2019%2F07%2F14%2Flife-cycle-of-spider-mites.html&psig=AOvVaw3esD4One7US2mRN1NRzoV2&ust=1641567354769000&source=images&cd=vfe&ved=0CAsQjRxqFwoTCJCi946xnfUCFQAAAAAdAAAAABAD
Best of luck