It's been just over a week since the substrate swap so I figured it would be a good time for some updates and some comments on how specific plants are responding to the changes in the tank.
The plants overall are coloring up nicely and starting to put out some solid looking growth. I adjusted the light spectrum so it has the color I prefer and some of the improvement is coming from that change, but the majority is improved plant health. The algae still isn't growing outside of some old growth and that was easily dealt with by trimming. It doesn't seem to be on the new growth at all while the glass and substrate remain clean despite increased light intensity. It also seems like the rate I'm seeing new leaves come out is faster as well, but its still too early to say for sure.

Rotala macrandra 'mini pink' is finally showing why it has that name. I guess my tank conditions were just bad before and that's why it was yellow. I actually threw away for the majority of the bush I had grown because I didn't like how yellow it was and now I'm disappointed because it's earning a permanent spot in the tank. The Rotala 'singapore' is also the right color now and is somwhat visible in the back left portion of the image.

Old Hygrophila 'compact' leaves are melting away and the new leaves are coming in flat with a nice reddish hue. This is how I remember it growing so this ones back to normal.

Bacopa salzmanii 'purple' is growing with more color now, but you can see some of the new leaves are whitish. This is also one plant that still has some algae on the old growth.

Ludwigia ovalis 'skeleton' is finally showing it's orangish color. The old leaves were also folded over on the ends (it's visible on the second set of leaves on the stem at the top of the picture) and now they're perfectly flat.

Rotala mexicana 'Goias' is growing a bit pink on the growing tips and isn't stunting anymore. It's also growing horizontally how its supposed to. I love this plant and look forward to seeing how it looks when its a full bush.

Samolus is actually growing and the new growth is pink like it's supposed to be. Every stem has put out at least one leaf this week, so the growth rate is closer to normal. I aggressively trimmed the algae-filled growth yesterday and it should keep getting better with more time and trims.

Limnophila wilsonii is one of the weirdly behaving groups and I'm not sure what's going on here. The new growth looks stunted-ish and is very light colored. I would have guessed CO2 issues from the look, but the
pH drop is 1.3 compared to degassed water, drop checkers are between green and yellow at lights on (almost yellow 1.5 hours into photo period), and the Hanna kit says 55
PPM CO2. CO2 shouldn't be an issue.

Limnophila aromatica 'Mini' (first pic) and Limnophila 'mini Vietnam' (second pic) have the same white growth on the growing tips. This seems to be a genus-specific issue and I don't think I've seen it before for any of these plants.

Hygrophila triflora is growing the expected color now and doesn't appear to be having any issues except for algae on the old growth. I probably will need to pull it up and remove all of the old leaves once it grows a bit more.

Ludwigia sp. 'red' is another plant that's behaving a little weird. The new growth is a better color than before, but it's a bit wrinkly and some of the stems look like they're going to stunt. Maybe it's another plant that requires more time to adapt to the new conditions.
Not much has changed with other plant groups and I'm hoping they start to improve or decline in the next week so I can decide what to do next. Especially the Didiplis diandra. I really like this plant and it's a little strange it isn't growing still. Maybe it was in such bad shape that it's taking more time to adapt and put out new growth. I can see some new side shoots growing on the old leaves and those should give me more direction on how to proceed.