Surely not ALL are evaps?

Ok I’m 8DPO today. These are photos of the tests I have done so far.

Internet cheapie has faint line on it. Noticed it after a couple mins but got darker as the day went on.

ClearBlue has a faint second line which showed up after a couple mins but also got darker as day went on I think...

Boots own brand digital test said “not pregnant” opened it up and this was the result.

Did an opk and for a dark line (usually very faint lines while not ovulating)

FRER don’t think I see a second line.

Any help is great. Surely not all Evaps???

Cheapie:

Clearblue:!

Digital:

FRER: