Dude you’ve been on the forum since 2016 yet you manage to be completely off topic, asking about the support of your classic 2021 licence in a topic about “save as” in 2024.
and you’ve asked it before and other asked and answered it a lot over time.
no. there is not. and never will be. ever ever.
you already lost support in january.
you can use the version you have forever, as long as the login servers run.
in january you’ve lost the support of the web-based tools as the chromium version included in sketchup 2021 was not compatible with the various websites anymore. 3d warehouse, Extension warehouse, you can’t access them anymore directly in sketchup.
you can access them in your browser.
that’s all.
everything you need to know is in the End of Support Policy page
ok.