Users of all Kinsta plans enjoy a default PHP memory limit of 256 MB. This should be more than enough for 99% of all WordPress plugins and is in fact far more than most plugins should ever take.
If you’re set up with Kinsta hosting and your site is configured correctly, you should never encounter a memory limit error. The maximum limit is usually set automatically in the files without any intervention needed from you.
It might still be worth going through and making sure it hasn’t been set inadvertently too low within WordPress’ settings. It’s possible that something might have changed the number and lowered the number of resources you have access to.
If you’re still having issues, you can always contact Kinsta support and ask for help fixing the issue. We can help identify a misconfigured file you may have missed.