A few Finnish conjugations labeled declensions in en-wikt

No I was talking about the actual section heading. For some languages such as Latin, we've been using this heading for a long time. So I've decided to use it exclusively now, for all languages.

I was actually thinking of removing "inflection of" from the table header. After all, it doesn't really add anything useful if the heading is already labelled inflection/conjugation/declension. It would also leave more room for the inflection type.

Also, what do all of the ˣ characters after entries in these conjugation tables mean? (For instance suunnitella.) I'm not seeing them in any kind of legend.

They indicate that the form ends with final gemination for most speakers.