The art is fine, it fits the tone of the comic. There are a few poses that come off a bit stiff, but it doesn't hinder the comic at all. Linework is consistent and regular, which shows care and craftsmanship. There is a clear change in color palette with the new style, which looks harsher on my screen than the previous comics, and the linework is slightly less refined on the new ones. Personally, I find hyper-simple comic styles to be harder to work with, since minute variations affect the outcome so much. Take your time to make sure you have everything how you want it there. Given that you have several months between uploads recently, there's no reason to rush yourself.
The comic is a lighthearted take on TTRPGs, though I'd expect the dice to be a d20 for a medieval fantasy TTRPG setting. It doesn't seem particularly isekai-ish since he can still talk to the DM and it seems more like he is still a player rather than being reincarnated. The comic could benefit from having an experienced TTRPG player join the party - maybe one who calls out this DM on his lack of planning?
You might also think about planning further ahead. It looks like you're coming up with the comic one page ("chapter" but it amounts to the same) at a time, and as a result you're spending a long time on scene transitions but not really exploring the scenes themselves. You don't have to plan the whole comic out, but doing a dozen or so pages of thumbnails could let you put more jokes and events while minimizing transitions. It might also help you smooth out your upload pace and help you keep up the motivation to work on it.
Overall, it's a fun little comic that has a ton of potential, and that could be successful and popular if you work at it and let it grow.