Putting all wording beside this question seems to asks for 'Which compact Macs were there', which is already nicely summarised by the accordingly named Wikipedia article:
Time wise it never stopped. All-In-One have always been a corner stone of Apple desktop products.
- The original 1984 Mac was an All-In-One.
- The 'separate box and monitor' Mac was added in 1987 with the Mac II.
- Some Compact Mac resembled the original Mac quite close until the discontinuation of the SE/30 in 1991.
- The M1600 aka Color Classic II (discontinued in 1995) might count as last of the beige/grey 'Würfelmacs' (*1) with straight lines, but
- the All-In-One form factor continued with the LC 500 series. Although way less visible than before as these machines were almost exclusive directed at educational use.
- The Power Mac 5200 LC carried it over to the new CPU architecture. All the way to
- the infamous G3 Molar Mac introduced in 1996 (*2). It was up to
- the new 1998 G3 iMac (*3) to reintroduce the All-In-One to the general public as Jedermann-Mac. The next step in evolution was
- the iMac G4, making the Mac look like a screen with no computer at all - still following the All-In-One idea and adhering to the two features named in the question.
- All-In-One design continues today overseveral steps, each more stylish, with the 'Apple Silicon iMac being the latest incarnation.
The question wording is a bit complicated by trying to makeup a new naming "Obelisk" when these machines are commonly known as All-In-One and, especially for the older Macs by the well established term of "Compact Mac".
Likewise singling out Apples with their design of an All-In-One doesn't hold when looking at other machines at the time or even before, like the TRS-80 Model II and others.
The features (no cable clutter, portability (*4)) mentioned for the "Obelisk" design what makes an All-In-One design. Portability of course depending on individual value of size and weight (*5).
In addition I would think the assessment of 'most' and 'business computer' is rather debatable.
*1 - Würfelmac, literaly Dice- or Cube-Mac, German slang term for all classic Macintosh due their very boxy style.
*2 - There's a real nice in depth article about it on Mac Stories.
*3 - Strictly there's also the 1997 TAM, but due being a one-off run, fore shading the later Intel iMac, it may not really count.
*4 - Having a 'handle' like ditch is no really a sign for potability as such can be found on many devices - including classic monitors - without adding portability as a feature. They are to enable handling in general.
*5 - Anyone who had ever the need to move a compact Mac for a longer distance than to one desk over might agree that they are not really that portable at all.