I've installed the PushToWatch extension on my "testing wiki", so I can test @thiemowmde's patch. And I've found that extension no works. I've merged his patch, as behavior is same, but code looks much better.
Extension is correctly loaded and appears in the Special:Version:
Per documentation on MediaWiki.org, option should be in footer, but there isn't any option.
If someone know how-to fix this problem, it would be great. If not, we maybe should think about the option of archiving.
Version details:
| Product | Version |
| MediaWiki | 1.36.0-alpha (20f5062) |
| PHP | 7.4.12 (litespeed) |
| MariaDB | 10.3.27-MariaDB |
| ICU | 63.1 |




