Fluorescents are arc-discharge lights, meaning like neon where a high voltage runs the length of the tube, and that arc must be initially struck on startup. 2-pin simply means the lamp does not have electrode preheaters for gentle startup. They are built extra tough to handle this.
So a 2-pin ballast needs a somewhat higher startup voltage. That is not a significant difference, if anything it makes the ballast simpler than a preheat ballast. So yes, it can easily be an electronic ballast.
For instance you see the same dichotomy on 48" fluorescent tubes, rapid/programmed start ballasts use the preheaters, instant start ballasts do not. Both are electronic.
Once the arc is struck, the tube needs something to limit current. That's tge other job of the ballast, and why they call it a ballast. Again not a problem to do that in an electronic ballast.
Getting rid of buzz and flicker is still desirable, so I'm sure somebody makes an electronic ballast for your types of bulb.
Not sure I would trust a no-name ballast brand from eBay, though. I would gravitate toward companies with an actual history at making ballasts, like GE, Philips/Advance, Sylvania and others often seen on sites like 1000bulbs.com.