I think the recent situation around Ukraine actually diminishes the possibility of turmoil in B&H because Western powers are now more eager to use the Office of the High Representative to remove from power anyone who works against peace in B&H.
https://www.govinfo.gov/content/pkg/CHRG-115shrg28945/html/C...
https://www.jstor.org/stable/resrep18769?seq=4#metadata_info...
https://www.fpri.org/article/2018/03/bosnia-russian-chopping...
https://www.spiegel.de/international/europe/the-fragile-stat...
https://www.balcanicaucaso.org/eng/Areas/Balkans/War-in-Ukra...
https://balkaninsight.com/2022/03/01/serbian-far-right-group...
https://balkaninsight.com/2021/11/23/experts-urge-improved-a...
In short, Russia and the current Republika Srpska leadership has incentives to keep the situation simmering but they don't have the means to heat the situation to the point of boiling.
The OHR can at any time remove from power any politician who would try that. NATO and EUFOR forces stationed in the country could easily quell any conflict. Even without relying Bosnia's internal security forces and neighbours that also have an interest in peace in B&H.
Apparently, the Russians even need external experts for their war crimes, as they recruit war-experienced Syrians as mercenaries. I assume that the Serbian experts in this field will work for Mother Russia for free. This will probably relieve B&H from that pest, temporarily. Until those fighters return. Of course, If they do. Wouldn't mind to see them die there.