It's very unlikely you'll need it
Remember that paper documents are easily forged - all it takes is a printer and some fancy paper. Back in the day this was harder to do, but these days any kid can fake up a certificate in Word. No sensible employer will rely on paper documents these days. That's not too say that there aren't employers around with obsolete ideas about this, but they're dying out. I've worked in industry for 25 years and I've never been asked.
If you attended a reputable university in a G20 country, the master record for your degree is not your paper copy, it's the university records. If someone wants to know if you got a degree from the university, they call the university. Even if the university shuts down, the state will normally preserve records for exactly this reason. But most universities in G20 countries don't shut down, because the trend is for increased higher education. At most they might merge with another university, but the historical records will still be preserved.
All this assumes anyone cares about your degree, of course. Remember that a degree is only a beginner's qualification in that field. Within the first few years of uni, your degree is going to be a major part of your "show reel" for getting a job, sure. After a few years of real work though, employers are far more concerned with the work you've done. A degree only proves that you've had some teaching - your experience at work proves whether you can apply what you were taught.
And even when you've only got your degree, as an interviewer I don't care about the piece of paper. I want you to talk me through the major projects you did, what the challenges were, and how you solved them. I want you to be able to geek out on the details - and after 25 years you'd better believe I can keep up with you on that! I want someone who's as excited to be working in the field as I am. If all you can tell me about is passing exams, you aren't the person I want working for me.
Assuming you're looking for a job in the same area as your degree...
All this does assume that your degree was in any way relevant to the job you're applying for. If you're going for a completely different job, and the company is using "do they have a degree?" as a placeholder for "do they have a functioning brain?", then maybe they're more likely to want proof of a degree even after some time.
But I take exception to that attitude, because it implies people who've chosen to do some other line of work instead of getting a degree are somehow "lesser". The best engineer I've ever worked with, who mentored me for a number of years, started as a technician and got a degree in his free time a number of years later. I'd strongly disagree with any suggestion that he was ever "lesser" before he got his degree. So if this is the mindset you're faced with, you should think carefully about whether this is actually a good place to be.