Wikibase depends on some resource loader modules in core which currently are not marked with target => mobile. However, they are needed for editing Wikidata in mobile view and thus should also be available there.
The list of modules Wikibase depends on (in core) is:
Incomplete!!!
| Status | Subtype | Assigned | Task | ||
|---|---|---|---|---|---|
| Resolved | Jdlrobson | T78430 [Epic] Getting Wikidata to render nicely on mobile web | |||
| Open | None | T158181 Aim for workflow equivalence for MediaWiki on desktop and mobile web | |||
| Open | None | T95878 [Story] Make Wikidata editable on mobile web | |||
| Declined | Bene | T100134 Add custom style for mobile editing | |||
| Declined | Jdlrobson | T100133 Add mobile target for resource loader modules Wikibase depends on |
We have no plans to support jQuery UI in MobileFrontend and this is intentional behaviour. Performance is extremely important in mobile thus we are minimising the ways you can build UIs and the frontend standardisation group has decided that oojs ui is the standard library for building these sorts of things.
Please port your modules to oojs ui.
Note: jquery.tipsy may not be such a problem. You can open a separate task for that.