Thanks, grammar angel on my shoulder! You are correct, though effervesce is a much more fun word to say.

You'll get better adhesion to the shower floor and tile if, instead of using a finger, you use a profiling tool (ideally an angled one, not a concave curve that you'd get with the finger).

Concave silicone in areas that get a lot of water (like showers) mean the part that is doing most of the 'work' to keep water in the shower (where the top and bottom edges of the silicone meet their respective surfaces) is often very thin. A suitable straight angle avoids this issue.

One other good thing to do is wipe the area thoroughly with isopropyl alcohol before applying the silicone (giving enough time for it to effervesce evaporate away). Silicone hates soap residues, grit, and especially grease (another reason not to use a finger!), and alcohol is great at getting rid of all three.

Mauviel make some beautiful pans and ours are still in good condition after years of daily abuse. Expensive but great quality - the European equivalent of All Clad that seem to be the benchmark of decent pans in the US (and on Reddit!).