Well *done*, Hoopla. (ranty tech thing)
Before I've even registered for your service, you've greeted a user just wanting to take a peek with this wonderfully non-bypassable "use a modern browser" screen.
....I'm quite literally using Chromium. Stock Chromium, with only a patch to enable the hardware h.264 decoding on Linux. (Which, by the way, is enabled in mainline Chrome on Windows - a configuration they explicitly support.)
A generalist Mastodon instance with a nice domain name. Running on Glitch Social's fork with a custom theme!