Hi all,
I am having the same problem: with Radeon RX5500 and intel -i5-10500 on Windows 10, Home.
So far I have been using Obsidian only with Linux Machines, and have never had an issue. even now, when I don’t have a similar issue with my laptops with Nvidia GPU and an old laptop with Intel HD graphics.
in fact, I am getting the tearing/lagging when resizing not only when the transparent mode is on, but also when it is off (but in a lesser extent).
As a side note, I am having similar problems with other electron apps, such as Notion or ClicUp