Don't get me wrong. This decision is a step in the right direction, but it's not the silver bullet many think. At least not yet.
It is the silver bullet, but it will take a couple years for the whole effect to come to fruition.
Maryland's assault weapon ban is up for consideration by the Supreme court this fall. It'll either get taken up, which would likely freeze any 2A related cases again, or punted back down to re-rule with the new precedent from Bruen. If it gets taken up by SCOTUS, that is all assault weapon bans gone by June next year. If it gets punted, the lower court will be forced to rule in favor of the 2A by the current precedent, and the state will almost certainly not appeal to avoid it getting slapped down and have all AWBs be struck down nation wide.
In the next 6 months to a year the CA mag ban, assault weapons ban, and handgun roster will be heard and decided via this precedent. If the 9th finally takes the hint, the state will lose all of these cases. Likely they will not appeal to prevent them from going to the supreme court and just take the L in the 9th. In the event the 9th completely defies Thomas's opinion, it'll get appealed and taken up by the supreme court. This would drag the process out, but it would completely end any state attempts at blanket bans for good. Liberals will begin to stop appealing when they lose to try and prevent it from going higher up the chain.
So I give it 2 years tops before assault weapon bans, mag bans, etc... are completely illegal. Either by way of the supreme court or because the 2nd and 9th give up.
By the time this rolls around, I also expect lawsuits involving the NFA to be in the works. That will be extra spicy since it will never pass the test that Thomas's opinion mandates. This is because they'll have to look at history, text, and tradition prior to 1934, and before that there was literally nothing. They cant use any history, text, or tradition that post-dates the law under consideration. That would rip the NFA out by the roots.
I am quite confidant that we'll have unrestricted machine guns, SBRs, suppressors, etc... within 5 years. The only thing that might survive scrutiny is the $200 tax stamp, and that is quite marginal.
