2019 16" MacBook Pro Garbled Rendering Issues WebGL

I use Lucid Chart in Safari and I intermittently have issues with garbled rendering. The Lucid Chart team said I could turn off WebGL to see if that corrected the rendering, and it did. However, the site does not perform well when I turn off WebGL. I have also encountered this problem often in Chrome with other web sites, not just LucidChart.com. I'm including a couple of threads on the topic. This is apparently an issue with the AMD Radeon Pro 5500M Graphics Card in the 2019 16" MacBook Pro. Please help. I've had this problem for months and no resolution.

• Chromium defect related to this issue: https://bugs.chromium.org/p/chromium/issues/detail?id=1068170
• LucidChart issue: https://lucidchart.zendesk.com/hc/en-us/community/posts/360068089931-Rendering-issues-on-Mac-Safari-and-Chrome?page=1#community_comment_360012386671