First
This is public raws. the size is small.
Don't use the way of QC in this video. It is for cleans from HQ mag raws. And even it is mag raws, only leveling in this video for checking dust can be used. the other not. We don't QC like that for mag cleans.
Second.
This is public raws. the size is small.
So we don't need to make it black and white completely. Has some dust in black matter is fine and has some dust in blakc matter is fine as well.
Use your sense.
Third
This is public raws. the size is small.
Don't denoise the page directly and it will cause lost details. Your page will be blurry.
Fourth
Normally for raws that has big size (>= 2000 px high), we can resize to 8000 px high and level.
But the size is small.
So don't resize, level at current size.
Don't need to make it black and white completely. You can use our eyes to check. Level grey 1.15 or something that is similar to have details in black matter again a bit.
Here is the steps to clean it.
1. Duplicate layer then do those steps one time. It is [Complement Pattern] (denoise indirectly)
2. Level at current size.
It has dust when we check. Yes. But when you use your "eyes", if you don't zoom, it is very hard to see.the clean is fine even with dust.
Don't level it too black or too white. just enough for black and enough to reduce most visible dusts in white matter. use your eyes.
Because we denoise indrectly, the black is already easier to level.
3.
Here is the result.
Your screen maybe is different from my screen. It is harder for my screen to see dusts by normal eyes.
So maybe you have to level white just a bit more. Don't do it too much. It will cause lose details. You can also use blur > surface blur a bit before leveling to reduce dusts if you see the result could be better.
You can also use dodge tool do make dusts faint but keep it mind, you don't have to make it pefect.
This is public raws. the size is ...
Read more about cleaning
[Sense-scans] Tankoubon/Volume Raw Cleaning test instructions (it is about HQ and MQ tank raws and test as well)
[Chocolat Vanilla] Cleaning guide - How to clean properly? (find complement pattern)
https://mangahelpers.com/forum/threads/editing-help-center.3005895/