Would this meet requirements for Sims 4 and 3

@SimsConspiracy  The computer you linked is a very good system except for the most crucial component, the graphics card.  It's not a bad card, but it wouldn't run Sims 3 or Sims 4 (all expansion packs included) on ultra graphics settings.  While it would be simple enough to swap out the included Radeon RX 550 for something better, strong enough cards start around $140.

If you're willing to buy a used desktop, there are some better options on Amazon, starting with this one.  The processor is a bit weaker than the one you found, and it has only 8 GB RAM, but you could add an identical RAM stick for maybe $40.  The Nvidia 1060 in this model would run both Sims games on ultra settings, and would probably run all future Sims 4 packs on ultra as well.  The one advantage that this model has over the other two used models below (and the one you saw) is that it has a small solid state drive, so Windows will run faster.  Your games would still need to be installed on the large mechanical drive though.  The used option from Amazon Warehouse is $511.

https://www.amazon.com/Dell-i5680-5842BLU-PUS-Inspiron-Gaming-Desktop/dp/B07BR6JJ6S

The "like new" offering for this one is $557, and it has a slightly stronger graphics card.  Its processor is a bit stronger than the one you picked out as well.

https://www.amazon.com/Dell-i5675-A957BLU-PUS-Inspiron-Processor-Graphics/dp/B072JTP23B

This one has an even stronger processor, plus 16 GB RAM.  Its graphics card is equivalent to the first option I listed.  The Amazon Warehouse offering is $585.

https://www.amazon.com/Dell-Inspiron-Desktop-Processor-Graphics/dp/B07Q3G3B67

As for new computers, the specs won't be as good as above, of course.  The cheapest good option I saw that's from a decent brand is this Acer, at $600.  It has the same processor as the first option I listed, and the same graphics card as the third one (equivalent to the first one).  It also has only 8 GB RAM.  But then again, it's new.

https://www.amazon.com/Acer-N50-600-UR12-Desktop-i5-8400-Graphics/dp/B07GXJGHM8

For $620, this model has higher quality parts, including a 512 GB solid state drive, enough room for Windows and both Sims games.  Its processor is a bit stronger than the Acer's, and it has the same graphics card.

https://www.cyberpowerpc.com/system/READY-TO-SHIP-GAMER-MASTER-ET9919

If you have any questions, or want to know about other options, please feel free to ask.

Edit:  I just saw your second post, and it's not really what you want.  The computer doesn't even have a dedicated graphics card.  You could certainly add one, but again, that wouldn't be cheap.