GlitchTip had replaced our Sentry (9.x, pre-Clickhouse madness). It was just a matter of updating DSN in a few Configmaps/Secrets, good to go from day one. The UI is a bit buggy and "resolve" doesn't always work, but it does 99% of what Sentry did with 10% of the effort to maintain a modern Sentry setup.

And actually open source, which matters to some folks