Given "AI" is over 50% of all content now, even if you flip a coin chances are pretty good some article contains slop.

https://www.youtube.com/watch?v=vrTrOCQZoQE

The Ubuntu repositories curate both the legacy and more modern logisim fork:

sudo apt-get install logisim

sudo snap install logisim-evolution

Microcap 12 is also still available from the archive.org web cache, was made free, and runs in Wine64 just fine:

https://web.archive.org/web/20230214034946/http://www.spectr...

Microcap will handle both Analog and Digital simulations.

KiCad now also supports Spice, and reports it should import the free LTSpice libraries. I have yet to find a use case for the kicad sim option... so YMMV.

https://www.kicad.org/discover/spice/

Best of luck, =3