Most every rival vector drawing application out there will import Adobe Illustrator and/or PDF files to some degree. The import success rate drops big time if the Illustrator-based artwork has certain unique effects that aren't flattened/expanded to editable outlines.
This applies to opening up Corel files as well.
One
cannot or should not expect a proprietary file format to be opened up by another program with 100% success rate. It's just not logical to expect that.
Now, I'm a strong believer, as I have said numerous times, of having everything outlined or finalized to the upmost that one can still do and still have as much perks of it being vector as one can.
The point is not to be
only beholding to the proprietary master file.
I have a pretty simple standard on what makes someone a "professional" at their job: getting paid and making a living doing that kind of work.
Then by this definition (which ironically is the same minimum threshold that I use as well) should be
independent of whatever software or platform that they use.
It's pretty difficult for someone who is self-taught and not getting paid to justify blowing $650 per year on Adobe software. Likewise it's going to be difficult for those same people to justify blowing $200 per year just to use CorelDRAW. It's a whole lot easier paying the $54 per month for Adobe software when the purchase is being made through a company. The cost is an easy tax write-off as an operational expense. An amateur/hobbyist type can't get the same tax write-off.
See, this is cutting out a certain demographic of pro users though. The problem here with Corel and with how Adobe are doing this, isn't just about price. Price plays a part, in so much is that it's more cost, but it's also for less control. I come from a trade where commercial software starts at $3k and goes up to $15k. If this was solely based on price, I would be loving it. Adobe and Corel are dirt cheap. So it's all relative.
I don't like my business being dependent on inputs that I am losing more control as each year goes by.
Ironically, even you were complaining about a particular type of lack of control when it comes to the Mac version of Corel.
Just because a certain application is free/open source doesn't mean it or its file format will be supported forever. I think picking the strongest "common denominator" format, whether it's associated with a commercial application or "open," is the best way to go in picking a fall-back format to archive graphics assets. To me PDF currently looks like the most acceptable choice (despite the max art board size limits).
Again the main point is not only save one's file in the master,
proprietary format. That's the key thing. While an open source format may not be supported in terms of new features and/or currently being developed, the chances of better reading of said format exist versus a closed source proprietary format.
But not always the case. For instance, SVG, which is an open standard of 2D graphics, Ai's opening of that format is limited and sucks.
And yes, just because it's open doesn't mean that it would be supported forever, but I can certainly use it much, much longer without having to go through the same hoops that I would have to go through with a closed source program. I'm able to run Blender 1.8 on a Win 7, 8, and 10 computers from a jump drive, but I have a closed source program that was mainly developed for Win 7 and on Win 8, I was having to manually move DLL files from the CD to the harddrive to get it to work. So that's a program version that is pre-'02 (ugly XP was a young buck back then having come out in '01) versus a program from 2010-2011, somewhere around there.
Also, yes functionality is also deprecated and removed from open source programs, but it's also easier for people to pick up that "abandoned" functionality and run with it. For instance, BGE has been deprecated and will be removed from the official release later this month (RC is due out the 11th of this month). UPBGE has picked up the slack and even has atleast one of the original BGE devs as well. Not a snow ball's chance in hell to get that to work in a closed source venue.