[greeneyes]

Could be. I would trim off leaves from the bottom, and bury more of the stem if it was me.

[Eric in the Ozarks]

You are correct. Deep solves most tomato issues.

However, when the first small blossoms appeared, I thought it would be better to snip them instead of bottom leaves. I'm not sure blossoms are a good idea in our little greenhouse. Snipping seems to have stimulated more flowers.
Transition from inside to out is at hand !