Google My Business is a very sensitive platform. Every single change made to your listing can potentially cause a suspension. Sometimes it's for a legitimate reason, other times, Google’s spam filters might be more sensitive in your particular market. Whatever the case may be, let's review some actions that have a high chance of causing suspensions.
Making changes to your name. This is a sensitive section and making a big change or to many small changes can result in a suspension. Let's say your listing is Bob’s Law Firm and you change it to Bob’s Law Firm LLC. This is considered a small change and will likely not result in a suspension. If you then change it to Bob’s Law Firm PLLC, then to INC etc you can become suspended. Likewise making a change from Bob’s Law Firm to Sally’s Law Form or something more extreme like Bob’s Restaurant will likely result in a suspension.
Changing the Primary Category has a higher than normal chance in resulting in a suspension. Making a change from Personal Injury Lawyer to Law Firm likely won't cause a suspension but changing from Personal Injury Lawyer to Restaurant has a high chance for a suspension. Adding secondary categories that have nothing to do with the primary category can also lead to suspensions.
Making a change to the address will likely not cause a suspension but Google can ask you to re-verify your listing.
Changing the link from the home page to say a location page is likely to be fine. Changing the link from your website to a whole new website can likely cause Google to reject the change or suspend you.
At the end of the day, any change made, even something as simple as adding a holiday time can cause a suspension. Weigh the risk vs reward and make a decision from there. Be aware that some changes are more sensitive than others.