Zoom lost when switching full screen mode (MMB).

[FKCapitalism2]

If i have image open in window (normal mode) and i zoom up to 100% then i click middle mouse button it switching to full screen without menus and as soon as it switches image becomes not 100% anymore.

[user0]

resetting manually set zoom (to pre-selected autozoom) when switching normal-fullscreen-normal modes
is legit behavior on its own:

• zoom resets
  xnview mp, acdsee, faststone, irfanview

• zoom keeps - for all sizes
  xnview classic, imageglass, nomacs, ms photos

• zoom keeps - for small images only
  imagine

however, I see no reason why both approaches could not be implemented.
zooming settings just need some massage; I still find 'last used' option a bit strange

[FKCapitalism2]

resetting manually set zoom (to pre-selected autozoom) when switching normal-fullscreen-normal modes
is legit behavior on its own:

• zoom resets
  xnview mp, acdsee, faststone, irfanview

• zoom keeps - for all sizes
  xnview classic, imageglass, nomacs, ms photos

• zoom keeps - for small images only
  imagine

however, I see no reason why both approaches could not be implemented.
zooming settings just need some massage; I still find 'last used' option a bit strange

Only reason i needed that is because there's no indication of zoom level when in full screen mode and i don't want to struggle with right click menu or count how many times i press + before it hits 100% zoom mark in windowed mode then switch back to full screen and repeat.

However i found there's a shortcut / (on numpad) to go full screen and * (on numpad) to fit to the screen so this works for me now as workaround.

However having checkbox option to "keep magnification level while switching full screen" would be nice too.

[user0]

there's no indication of zoom level when in full screen mode

Info overlay has {Zoom}% tag (which is visible by default as well)