We are realistically not going to know the ultimate impact of what effect BG3 and Solasta will have on cRPGs moving forward, let alone the wider gaming industry, for years. It appears to me that we are finally seeing evidence of what impact DOS2's combat design is having on other games, with Project Triangle Strategy and Lost Eidolons incorporating field effect elements into their games that are obviously inspired by DOS2. Zoria: Age of Shattering appears to have adopted the AP system instead, and the devs for that game have been on record saying that they've been inspired by DOS2 (and it plays much closer to DOS1 compared to DOS2 otherwise).
That said, 200,000 minimum sales for Solasta isn't bad, and actually pretty decent given the context. I don't think anyone was expecting earth-shattering numbers, but I also don't think anyone was expecting Pillars of Eternity II levels of bomba either, which was the bigger worry. I don't think POE2 ever made it past 500k despite it having a much higher budget than most other cRPGs. I think Pathfinder: Kingmaker has gone past 1 million at this point, but it had an extremely rocky start due to being an unfinished buggy mess at the time, but the base game was so strong that it flipped its reputation around completely once it got fixed and now enjoys insane word of mouth.