No sure if VPN usage is worth the risk. This is how one's account gets linked to a number of strangers he has no idea about. Imagine risking your money, making some good profit only to be blocked due to VPN use. And trust me, those game providers do way more tracking and information gathering than we know.
I at one time the slot demo mode temporarily disabled in 3 of my unverified accounts of different casinos because I had gone past the limit in one casino (to be fair, I was so bored and Idle that day)

There's always this chance when you're using a free VPN, however, the probabilities of it happening are quite slim, but possible nonetheless. If you want peace of mind and also use a VPN, you could get a simple subscription, they don't cost that much anymore and you're basically eradicating this probability. It might be worth it, as it may save you the trouble of explaining yourself one day. I personally use free VPN services and/or Cloudflare private DNS, Betpanda which is restricted in Greece works fine with it.