Are those new in Brno? Can't remember them from the last time I was there, but sure sounds interesting
Googling a bit I found this article about the first series produced parcial trolley busses (eq. battery equiped) being delivered in 2018: https://www.bmhd.cz/aktuality/aktualita.php?1481
Since then it certainly expanded a lot & there are now regular lines that have the trolleybus go part of the line under its own power, like the recently introduced line to Soběšice: https://brnensky.denik.cz/zpravy_region/brno-mhd-prvni-linka...
Thanks to this you can go watch them stow/deploy their collectors at the Královo Pole nádraží stop at about any time during the day. :)
It was usually in some tricky spots - trolley wires crossing streetcar wire on Konečného náměstí (yeah, we have both :) ) or on the top of the rather steep slope of the Kotlářská street next to the Natural sciences faculty of the Masaryk university.
I guess the new trolley busses with batteries and poles thatr can be stowed automatically might be even better for this - no need to fix the poles immediately, but wait for a regular stop or even the line terminus & just use the battery.
Also once when touring one of the trolleybus depos (the small one in Husovice) the local maintenance chief mentioned that the one roundabout wired for trolley buses (yes, that exists) is a pain to maintain & maybe they could scrap it in the future, with the busses crossing it on batteries instead. :)
We also have both streetcars and trolleybuses, and some strange junctions like the one at 5th and Jackson: https://maps.app.goo.gl/4TuLXmRLY5yK6HGJ6
There are some nice blog posts from a Seattle bus driver that go over some of the nerdy details of our system: https://www.nathanvass.com/blog/i-dont-know-what-a-trolley-i... https://www.nathanvass.com/blog/i-dont-know-what-a-trolley-i...