It’s not harmful, but it really depends on what roles you’re trying to land.
I usually recommend going for A+ then Network+, then Linux+ for new technicians at data centers.
If you’re worried about interviewing, I can say from the other side of the table that actual projects and working through issues shows experience more clearly than simply studying for and passing a cert. Even something simple like setting your desktop/server to be the DHCP server (instead of the router being the DHCP server)
https://en.wikipedia.org/wiki/Ex_post_facto_law
Changes to the law are only considered ex post facto laws in the United States when they bring about a criminal punishment - So prosecutors couldn’t charge Trump if the 22nd amendment was changed to only allow 1 term, for example. So if the 22nd amendment was altered to allow for more terms, it would not be considered an Ex post facto law
https://en.wikipedia.org/wiki/Calder_v._Bull
IANAL, but this is what I was taught in high school