Freecad is well worth your time. Yes it is a bit unwieldy at first, but once it starts to click you can be fast. For me, the most time consuming aspect is usually wrapping my brain around what the model should look like. Achieving it is then either trivial or you quickly look it up if it isn’t. There are lots of good tutorials.

If you’re trying to design anything functional, you should really go with a parametric modeller.

I’m a big fan of Radiohole, especially their song Grape (“I’m a grape, I’m a raisin.”)

Does this do/can it be used for keeping track of bicycle maintenance? Mostly which components are used (tires, brake pads,…) and when maintenance was done and so on?

…of DNA