What could have caused the bounce rate to rise?

Question

Google Analytics

Hello.
After the visual update of the sai, the bounce rate has increased a lot. And this happened a few weeks later.
I analyzed various data, but could not find patterns.
At first there were thoughts that this was due to AMP, because. there were a large number of errors, but there were failures for all types of devices.

There is data from Google analytics (sessions, bounce rate, view duration and view depth):

Yandex metric was installed recently, but there the bounce rate is within 12%
What could be the problem?

Answer 1

but there is a failure rate within 12%

Well, you know that they think differently? it is necessary to file the analytics with the Yandex principle - Wirth events, events, etc., will be "the same" for you,
but how the pages have visually changed - you can’t understand at all from these graphs, what answer are you waiting for? )