The lemmy frontend will come up fast, but you would see an error and a popup telling you that lemmy is still starting. If you can see content, then the DB migration is finished already. The 1.3.0 branch of ansible doesn’t have any changes which would cause performance impact. Currently it just adjusts the readme and adds pictrs 0.4.7.
Tagging is not natively supported in lemmy. This is why I made this bot. As the tagging happens by simply text scanning, just adding the tag somewhere in your body like I did in the OP should suffice.
Ah your instance must be limiting the size. lemmy.dbzer0.com allows you to upload anything and just downscales to 1024px max dimention. You can also just host on imgur etc.
I do FOSS as well, but I’d rather people have fun punting the stalebot than just keep repeating “this issue still exists”. I will probably get a chuckle out of it.